Finding the Third Proportional to 42,086 and 91,260

Step by Step Solution

1. Step 1: Write the proportion equation
   42,086 : 91,260 = 91,260 : x
2. Step 2: Convert to fraction form
   42,086/91,260 = 91,260/x
3. Step 3: Cross multiply
   42,086x = 91,260 × 91,260
4. Step 4: Simplify right side
   42,086x = 8,328,387,600
5. Step 5: Solve for x
   x = 8,328,387,600/42,086
6. Step 6: Final answer
   x = 197,889.74