Finding the Third Proportional to 42,480 and 62,217

Step by Step Solution

1. Step 1: Write the proportion equation
   42,480 : 62,217 = 62,217 : x
2. Step 2: Convert to fraction form
   42,480/62,217 = 62,217/x
3. Step 3: Cross multiply
   42,480x = 62,217 × 62,217
4. Step 4: Simplify right side
   42,480x = 3,870,955,089
5. Step 5: Solve for x
   x = 3,870,955,089/42,480
6. Step 6: Final answer
   x = 91,124.18