Finding the Third Proportional to 91,651.50 and 140,251.50

Step by Step Solution

1. Step 1: Write the proportion equation
   91,651.50 : 140,251.50 = 140,251.50 : x
2. Step 2: Convert to fraction form
   91,651.50/140,251.50 = 140,251.50/x
3. Step 3: Cross multiply
   91,651.50x = 140,251.50 × 140,251.50
4. Step 4: Simplify right side
   91,651.50x = 19,670,483,252.25
5. Step 5: Solve for x
   x = 19,670,483,252.25/91,651.50
6. Step 6: Final answer
   x = 214,622.60