Finding the Third Proportional to 99,757 and 215,340.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,757 : 215,340.50 = 215,340.50 : x
2. Step 2: Convert to fraction form
   99,757/215,340.50 = 215,340.50/x
3. Step 3: Cross multiply
   99,757x = 215,340.50 × 215,340.50
4. Step 4: Simplify right side
   99,757x = 46,371,530,940.25
5. Step 5: Solve for x
   x = 46,371,530,940.25/99,757
6. Step 6: Final answer
   x = 464,844.88