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Finding the Third Proportional to 18,579 and 36,226

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Solution

The third proportional to 18,579 and 36,226 is: 70,634.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,579 : 36,226 = 36,226 : x
  2. Step 2: Convert to fraction form
    18,579/36,226 = 36,226/x
  3. Step 3: Cross multiply
    18,579x = 36,226 × 36,226
  4. Step 4: Simplify right side
    18,579x = 1,312,323,076
  5. Step 5: Solve for x
    x = 1,312,323,076/18,579
  6. Step 6: Final answer
    x = 70,634.75

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Why These Related Problems?

These problems maintain the same ratio (1.95) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.