Finding the Third Proportional to 45,424 and 99,488

Step by Step Solution

1. Step 1: Write the proportion equation
   45,424 : 99,488 = 99,488 : x
2. Step 2: Convert to fraction form
   45,424/99,488 = 99,488/x
3. Step 3: Cross multiply
   45,424x = 99,488 × 99,488
4. Step 4: Simplify right side
   45,424x = 9,897,862,144
5. Step 5: Solve for x
   x = 9,897,862,144/45,424
6. Step 6: Final answer
   x = 217,899.40