Finding the Third Proportional to 45,642 and 99,040

Step by Step Solution

1. Step 1: Write the proportion equation
   45,642 : 99,040 = 99,040 : x
2. Step 2: Convert to fraction form
   45,642/99,040 = 99,040/x
3. Step 3: Cross multiply
   45,642x = 99,040 × 99,040
4. Step 4: Simplify right side
   45,642x = 9,808,921,600
5. Step 5: Solve for x
   x = 9,808,921,600/45,642
6. Step 6: Final answer
   x = 214,909.99