Finding the Third Proportional to 57,665.25 and 77,591.25

Step by Step Solution

1. Step 1: Write the proportion equation
   57,665.25 : 77,591.25 = 77,591.25 : x
2. Step 2: Convert to fraction form
   57,665.25/77,591.25 = 77,591.25/x
3. Step 3: Cross multiply
   57,665.25x = 77,591.25 × 77,591.25
4. Step 4: Simplify right side
   57,665.25x = 6,020,402,076.56
5. Step 5: Solve for x
   x = 6,020,402,076.56/57,665.25
6. Step 6: Final answer
   x = 104,402.60