Finding the Third Proportional to 99,751.50 and 215,328.38

Step by Step Solution

1. Step 1: Write the proportion equation
   99,751.50 : 215,328.38 = 215,328.38 : x
2. Step 2: Convert to fraction form
   99,751.50/215,328.38 = 215,328.38/x
3. Step 3: Cross multiply
   99,751.50x = 215,328.38 × 215,328.38
4. Step 4: Simplify right side
   99,751.50x = 46,366,309,080.14
5. Step 5: Solve for x
   x = 46,366,309,080.14/99,751.50
6. Step 6: Final answer
   x = 464,818.16