Finding the Third Proportional to 99,469.69 and 203,535.28

Step by Step Solution

1. Step 1: Write the proportion equation
   99,469.69 : 203,535.28 = 203,535.28 : x
2. Step 2: Convert to fraction form
   99,469.69/203,535.28 = 203,535.28/x
3. Step 3: Cross multiply
   99,469.69x = 203,535.28 × 203,535.28
4. Step 4: Simplify right side
   99,469.69x = 41,426,610,713.52
5. Step 5: Solve for x
   x = 41,426,610,713.52/99,469.69
6. Step 6: Final answer
   x = 416,474.72