Finding the Third Proportional to 66,493.69 and 99,505.69

Step by Step Solution

1. Step 1: Write the proportion equation
   66,493.69 : 99,505.69 = 99,505.69 : x
2. Step 2: Convert to fraction form
   66,493.69/99,505.69 = 99,505.69/x
3. Step 3: Cross multiply
   66,493.69x = 99,505.69 × 99,505.69
4. Step 4: Simplify right side
   66,493.69x = 9,901,381,844.85
5. Step 5: Solve for x
   x = 9,901,381,844.85/66,493.69
6. Step 6: Final answer
   x = 148,907.10