Finding the Third Proportional to 39,140 and 59,460

Step by Step Solution

1. Step 1: Write the proportion equation
   39,140 : 59,460 = 59,460 : x
2. Step 2: Convert to fraction form
   39,140/59,460 = 59,460/x
3. Step 3: Cross multiply
   39,140x = 59,460 × 59,460
4. Step 4: Simplify right side
   39,140x = 3,535,491,600
5. Step 5: Solve for x
   x = 3,535,491,600/39,140
6. Step 6: Final answer
   x = 90,329.37