Finding the Third Proportional to 71,312 and 151,800

Step by Step Solution

1. Step 1: Write the proportion equation
   71,312 : 151,800 = 151,800 : x
2. Step 2: Convert to fraction form
   71,312/151,800 = 151,800/x
3. Step 3: Cross multiply
   71,312x = 151,800 × 151,800
4. Step 4: Simplify right side
   71,312x = 23,043,240,000
5. Step 5: Solve for x
   x = 23,043,240,000/71,312
6. Step 6: Final answer
   x = 323,132.71