Finding the Third Proportional to 98,907 and 216,766.50

Step by Step Solution

1. Step 1: Write the proportion equation
   98,907 : 216,766.50 = 216,766.50 : x
2. Step 2: Convert to fraction form
   98,907/216,766.50 = 216,766.50/x
3. Step 3: Cross multiply
   98,907x = 216,766.50 × 216,766.50
4. Step 4: Simplify right side
   98,907x = 46,987,715,522.25
5. Step 5: Solve for x
   x = 46,987,715,522.25/98,907
6. Step 6: Final answer
   x = 475,069.67