Finding the Third Proportional to 57,705.75 and 87,328.13

Step by Step Solution

1. Step 1: Write the proportion equation
   57,705.75 : 87,328.13 = 87,328.13 : x
2. Step 2: Convert to fraction form
   57,705.75/87,328.13 = 87,328.13/x
3. Step 3: Cross multiply
   57,705.75x = 87,328.13 × 87,328.13
4. Step 4: Simplify right side
   57,705.75x = 7,626,201,416.02
5. Step 5: Solve for x
   x = 7,626,201,416.02/57,705.75
6. Step 6: Final answer
   x = 132,156.70