Finding the Third Proportional to 639,500.06 and 1,387,530

Step by Step Solution

1. Step 1: Write the proportion equation
   639,500.06 : 1,387,530 = 1,387,530 : x
2. Step 2: Convert to fraction form
   639,500.06/1,387,530 = 1,387,530/x
3. Step 3: Cross multiply
   639,500.06x = 1,387,530 × 1,387,530
4. Step 4: Simplify right side
   639,500.06x = 1,925,239,500,900
5. Step 5: Solve for x
   x = 1,925,239,500,900/639,500.06
6. Step 6: Final answer
   x = 3,010,538.41