Finding the Third Proportional to 42,376 and 62,840

Step by Step Solution

1. Step 1: Write the proportion equation
   42,376 : 62,840 = 62,840 : x
2. Step 2: Convert to fraction form
   42,376/62,840 = 62,840/x
3. Step 3: Cross multiply
   42,376x = 62,840 × 62,840
4. Step 4: Simplify right side
   42,376x = 3,948,865,600
5. Step 5: Solve for x
   x = 3,948,865,600/42,376
6. Step 6: Final answer
   x = 93,186.37