Finding the Third Proportional to 56,909.25 and 81,974.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,909.25 : 81,974.25 = 81,974.25 : x
2. Step 2: Convert to fraction form
   56,909.25/81,974.25 = 81,974.25/x
3. Step 3: Cross multiply
   56,909.25x = 81,974.25 × 81,974.25
4. Step 4: Simplify right side
   56,909.25x = 6,719,777,663.06
5. Step 5: Solve for x
   x = 6,719,777,663.06/56,909.25
6. Step 6: Final answer
   x = 118,078.83