Finding the Third Proportional to 99,415.69 and 148,798.69

Step by Step Solution

1. Step 1: Write the proportion equation
   99,415.69 : 148,798.69 = 148,798.69 : x
2. Step 2: Convert to fraction form
   99,415.69/148,798.69 = 148,798.69/x
3. Step 3: Cross multiply
   99,415.69x = 148,798.69 × 148,798.69
4. Step 4: Simplify right side
   99,415.69x = 22,141,049,401.72
5. Step 5: Solve for x
   x = 22,141,049,401.72/99,415.69
6. Step 6: Final answer
   x = 222,711.83