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Finding the Third Proportional to 239,306 and 522,078

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Solution

The third proportional to 239,306 and 522,078 is: 1,138,982.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,306 : 522,078 = 522,078 : x
  2. Step 2: Convert to fraction form
    239,306/522,078 = 522,078/x
  3. Step 3: Cross multiply
    239,306x = 522,078 × 522,078
  4. Step 4: Simplify right side
    239,306x = 272,565,438,084
  5. Step 5: Solve for x
    x = 272,565,438,084/239,306
  6. Step 6: Final answer
    x = 1,138,982.88

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.