Finding the Third Proportional to 147,132 and 315,000

Step by Step Solution

1. Step 1: Write the proportion equation
   147,132 : 315,000 = 315,000 : x
2. Step 2: Convert to fraction form
   147,132/315,000 = 315,000/x
3. Step 3: Cross multiply
   147,132x = 315,000 × 315,000
4. Step 4: Simplify right side
   147,132x = 99,225,000,000
5. Step 5: Solve for x
   x = 99,225,000,000/147,132
6. Step 6: Final answer
   x = 674,394.42