Finding the Third Proportional to 42,442 and 99,100

Step by Step Solution

1. Step 1: Write the proportion equation
   42,442 : 99,100 = 99,100 : x
2. Step 2: Convert to fraction form
   42,442/99,100 = 99,100/x
3. Step 3: Cross multiply
   42,442x = 99,100 × 99,100
4. Step 4: Simplify right side
   42,442x = 9,820,810,000
5. Step 5: Solve for x
   x = 9,820,810,000/42,442
6. Step 6: Final answer
   x = 231,393.67