Finding the Third Proportional to 42,492 and 87,712

Step by Step Solution

1. Step 1: Write the proportion equation
   42,492 : 87,712 = 87,712 : x
2. Step 2: Convert to fraction form
   42,492/87,712 = 87,712/x
3. Step 3: Cross multiply
   42,492x = 87,712 × 87,712
4. Step 4: Simplify right side
   42,492x = 7,693,394,944
5. Step 5: Solve for x
   x = 7,693,394,944/42,492
6. Step 6: Final answer
   x = 181,055.14