Finding the Third Proportional to 42,369 and 91,712

Step by Step Solution

1. Step 1: Write the proportion equation
   42,369 : 91,712 = 91,712 : x
2. Step 2: Convert to fraction form
   42,369/91,712 = 91,712/x
3. Step 3: Cross multiply
   42,369x = 91,712 × 91,712
4. Step 4: Simplify right side
   42,369x = 8,411,090,944
5. Step 5: Solve for x
   x = 8,411,090,944/42,369
6. Step 6: Final answer
   x = 198,519.93