Finding the Third Proportional to 147,271.50 and 307,665

Step by Step Solution

1. Step 1: Write the proportion equation
   147,271.50 : 307,665 = 307,665 : x
2. Step 2: Convert to fraction form
   147,271.50/307,665 = 307,665/x
3. Step 3: Cross multiply
   147,271.50x = 307,665 × 307,665
4. Step 4: Simplify right side
   147,271.50x = 94,657,752,225
5. Step 5: Solve for x
   x = 94,657,752,225/147,271.50
6. Step 6: Final answer
   x = 642,743.18