Finding the Third Proportional to 99,166.50 and 203,616

Step by Step Solution

1. Step 1: Write the proportion equation
   99,166.50 : 203,616 = 203,616 : x
2. Step 2: Convert to fraction form
   99,166.50/203,616 = 203,616/x
3. Step 3: Cross multiply
   99,166.50x = 203,616 × 203,616
4. Step 4: Simplify right side
   99,166.50x = 41,459,475,456
5. Step 5: Solve for x
   x = 41,459,475,456/99,166.50
6. Step 6: Final answer
   x = 418,079.45