Finding the Third Proportional to 98,632.69 and 215,915.63

Step by Step Solution

1. Step 1: Write the proportion equation
   98,632.69 : 215,915.63 = 215,915.63 : x
2. Step 2: Convert to fraction form
   98,632.69/215,915.63 = 215,915.63/x
3. Step 3: Cross multiply
   98,632.69x = 215,915.63 × 215,915.63
4. Step 4: Simplify right side
   98,632.69x = 46,619,557,119.14
5. Step 5: Solve for x
   x = 46,619,557,119.14/98,632.69
6. Step 6: Final answer
   x = 472,658.29