Finding the Third Proportional to 51,209.40 and 111,753.42

Step by Step Solution

1. Step 1: Write the proportion equation
   51,209.40 : 111,753.42 = 111,753.42 : x
2. Step 2: Convert to fraction form
   51,209.40/111,753.42 = 111,753.42/x
3. Step 3: Cross multiply
   51,209.40x = 111,753.42 × 111,753.42
4. Step 4: Simplify right side
   51,209.40x = 12,488,827,300.77
5. Step 5: Solve for x
   x = 12,488,827,300.77/51,209.40
6. Step 6: Final answer
   x = 243,877.62