Finding the Third Proportional to 119,581.50 and 253,743

Step by Step Solution

1. Step 1: Write the proportion equation
   119,581.50 : 253,743 = 253,743 : x
2. Step 2: Convert to fraction form
   119,581.50/253,743 = 253,743/x
3. Step 3: Cross multiply
   119,581.50x = 253,743 × 253,743
4. Step 4: Simplify right side
   119,581.50x = 64,385,510,049
5. Step 5: Solve for x
   x = 64,385,510,049/119,581.50
6. Step 6: Final answer
   x = 538,423.67