Finding the Third Proportional to 91,864.50 and 141,958.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,864.50 : 141,958.50 = 141,958.50 : x
2. Step 2: Convert to fraction form
   91,864.50/141,958.50 = 141,958.50/x
3. Step 3: Cross multiply
   91,864.50x = 141,958.50 × 141,958.50
4. Step 4: Simplify right side
   91,864.50x = 20,152,215,722.25
5. Step 5: Solve for x
   x = 20,152,215,722.25/91,864.50
6. Step 6: Final answer
   x = 219,368.92