Finding the Third Proportional to 42,387 and 88,270

Step by Step Solution

1. Step 1: Write the proportion equation
   42,387 : 88,270 = 88,270 : x
2. Step 2: Convert to fraction form
   42,387/88,270 = 88,270/x
3. Step 3: Cross multiply
   42,387x = 88,270 × 88,270
4. Step 4: Simplify right side
   42,387x = 7,791,592,900
5. Step 5: Solve for x
   x = 7,791,592,900/42,387
6. Step 6: Final answer
   x = 183,820.34