Finding the Third Proportional to 42,253 and 91,863

Step by Step Solution

1. Step 1: Write the proportion equation
   42,253 : 91,863 = 91,863 : x
2. Step 2: Convert to fraction form
   42,253/91,863 = 91,863/x
3. Step 3: Cross multiply
   42,253x = 91,863 × 91,863
4. Step 4: Simplify right side
   42,253x = 8,438,810,769
5. Step 5: Solve for x
   x = 8,438,810,769/42,253
6. Step 6: Final answer
   x = 199,720.98