Finding the Third Proportional to 45,408 and 99,520

Step by Step Solution

1. Step 1: Write the proportion equation
   45,408 : 99,520 = 99,520 : x
2. Step 2: Convert to fraction form
   45,408/99,520 = 99,520/x
3. Step 3: Cross multiply
   45,408x = 99,520 × 99,520
4. Step 4: Simplify right side
   45,408x = 9,904,230,400
5. Step 5: Solve for x
   x = 9,904,230,400/45,408
6. Step 6: Final answer
   x = 218,116.42