Finding the Third Proportional to 45,469.88 and 99,199.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,469.88 : 99,199.50 = 99,199.50 : x
2. Step 2: Convert to fraction form
   45,469.88/99,199.50 = 99,199.50/x
3. Step 3: Cross multiply
   45,469.88x = 99,199.50 × 99,199.50
4. Step 4: Simplify right side
   45,469.88x = 9,840,540,800.25
5. Step 5: Solve for x
   x = 9,840,540,800.25/45,469.88
6. Step 6: Final answer
   x = 216,418.91