Finding the Third Proportional to 91,251 and 141,232.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,251 : 141,232.50 = 141,232.50 : x
2. Step 2: Convert to fraction form
   91,251/141,232.50 = 141,232.50/x
3. Step 3: Cross multiply
   91,251x = 141,232.50 × 141,232.50
4. Step 4: Simplify right side
   91,251x = 19,946,619,056.25
5. Step 5: Solve for x
   x = 19,946,619,056.25/91,251
6. Step 6: Final answer
   x = 218,590.69