Finding the Third Proportional to 99,634 and 215,550

Step by Step Solution

1. Step 1: Write the proportion equation
   99,634 : 215,550 = 215,550 : x
2. Step 2: Convert to fraction form
   99,634/215,550 = 215,550/x
3. Step 3: Cross multiply
   99,634x = 215,550 × 215,550
4. Step 4: Simplify right side
   99,634x = 46,461,802,500
5. Step 5: Solve for x
   x = 46,461,802,500/99,634
6. Step 6: Final answer
   x = 466,324.77