Finding the Third Proportional to 22,153.50 and 51,691.50

Step by Step Solution

1. Step 1: Write the proportion equation
   22,153.50 : 51,691.50 = 51,691.50 : x
2. Step 2: Convert to fraction form
   22,153.50/51,691.50 = 51,691.50/x
3. Step 3: Cross multiply
   22,153.50x = 51,691.50 × 51,691.50
4. Step 4: Simplify right side
   22,153.50x = 2,672,011,172.25
5. Step 5: Solve for x
   x = 2,672,011,172.25/22,153.50
6. Step 6: Final answer
   x = 120,613.50