Finding the Third Proportional to 56,330 and 87,191.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,330 : 87,191.50 = 87,191.50 : x
2. Step 2: Convert to fraction form
   56,330/87,191.50 = 87,191.50/x
3. Step 3: Cross multiply
   56,330x = 87,191.50 × 87,191.50
4. Step 4: Simplify right side
   56,330x = 7,602,357,672.25
5. Step 5: Solve for x
   x = 7,602,357,672.25/56,330
6. Step 6: Final answer
   x = 134,961.08