Finding the Third Proportional to 99,800 and 151,320

Step by Step Solution

1. Step 1: Write the proportion equation
   99,800 : 151,320 = 151,320 : x
2. Step 2: Convert to fraction form
   99,800/151,320 = 151,320/x
3. Step 3: Cross multiply
   99,800x = 151,320 × 151,320
4. Step 4: Simplify right side
   99,800x = 22,897,742,400
5. Step 5: Solve for x
   x = 22,897,742,400/99,800
6. Step 6: Final answer
   x = 229,436.30