Finding the Third Proportional to 99,704.25 and 215,061.75

Step by Step Solution

1. Step 1: Write the proportion equation
   99,704.25 : 215,061.75 = 215,061.75 : x
2. Step 2: Convert to fraction form
   99,704.25/215,061.75 = 215,061.75/x
3. Step 3: Cross multiply
   99,704.25x = 215,061.75 × 215,061.75
4. Step 4: Simplify right side
   99,704.25x = 46,251,556,313.06
5. Step 5: Solve for x
   x = 46,251,556,313.06/99,704.25
6. Step 6: Final answer
   x = 463,887.51