Finding the Third Proportional to 90,747 and 140,197.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,747 : 140,197.50 = 140,197.50 : x
2. Step 2: Convert to fraction form
   90,747/140,197.50 = 140,197.50/x
3. Step 3: Cross multiply
   90,747x = 140,197.50 × 140,197.50
4. Step 4: Simplify right side
   90,747x = 19,655,339,006.25
5. Step 5: Solve for x
   x = 19,655,339,006.25/90,747
6. Step 6: Final answer
   x = 216,594.92