Finding the Third Proportional to 39,109.71 and 57,254.98

Step by Step Solution

1. Step 1: Write the proportion equation
   39,109.71 : 57,254.98 = 57,254.98 : x
2. Step 2: Convert to fraction form
   39,109.71/57,254.98 = 57,254.98/x
3. Step 3: Cross multiply
   39,109.71x = 57,254.98 × 57,254.98
4. Step 4: Simplify right side
   39,109.71x = 3,278,132,341.17
5. Step 5: Solve for x
   x = 3,278,132,341.17/39,109.71
6. Step 6: Final answer
   x = 83,818.88