Finding the Third Proportional to 56,341.50 and 87,209.25

Step by Step Solution

1. Step 1: Write the proportion equation
   56,341.50 : 87,209.25 = 87,209.25 : x
2. Step 2: Convert to fraction form
   56,341.50/87,209.25 = 87,209.25/x
3. Step 3: Cross multiply
   56,341.50x = 87,209.25 × 87,209.25
4. Step 4: Simplify right side
   56,341.50x = 7,605,453,285.56
5. Step 5: Solve for x
   x = 7,605,453,285.56/56,341.50
6. Step 6: Final answer
   x = 134,988.48