Finding the Third Proportional to 56,011.50 and 86,705.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,011.50 : 86,705.25 = 86,705.25 : x
2. Step 2: Convert to fraction form
   56,011.50/86,705.25 = 86,705.25/x
3. Step 3: Cross multiply
   56,011.50x = 86,705.25 × 86,705.25
4. Step 4: Simplify right side
   56,011.50x = 7,517,800,377.56
5. Step 5: Solve for x
   x = 7,517,800,377.56/56,011.50
6. Step 6: Final answer
   x = 134,218.87