Finding the Third Proportional to 56,781.56 and 88,170.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,781.56 : 88,170.75 = 88,170.75 : x
2. Step 2: Convert to fraction form
   56,781.56/88,170.75 = 88,170.75/x
3. Step 3: Cross multiply
   56,781.56x = 88,170.75 × 88,170.75
4. Step 4: Simplify right side
   56,781.56x = 7,774,081,155.56
5. Step 5: Solve for x
   x = 7,774,081,155.56/56,781.56
6. Step 6: Final answer
   x = 136,912.07