Finding the Third Proportional to 57,462.38 and 78,877.71

Step by Step Solution

1. Step 1: Write the proportion equation
   57,462.38 : 78,877.71 = 78,877.71 : x
2. Step 2: Convert to fraction form
   57,462.38/78,877.71 = 78,877.71/x
3. Step 3: Cross multiply
   57,462.38x = 78,877.71 × 78,877.71
4. Step 4: Simplify right side
   57,462.38x = 6,221,692,358.39
5. Step 5: Solve for x
   x = 6,221,692,358.39/57,462.38
6. Step 6: Final answer
   x = 108,274.18