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Finding the Third Proportional to 59,578 and 128,835

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Solution

The third proportional to 59,578 and 128,835 is: 278,600.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,578 : 128,835 = 128,835 : x
  2. Step 2: Convert to fraction form
    59,578/128,835 = 128,835/x
  3. Step 3: Cross multiply
    59,578x = 128,835 × 128,835
  4. Step 4: Simplify right side
    59,578x = 16,598,457,225
  5. Step 5: Solve for x
    x = 16,598,457,225/59,578
  6. Step 6: Final answer
    x = 278,600.44

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.