Finding the Third Proportional to 640,244 and 1,373,800

Step by Step Solution

1. Step 1: Write the proportion equation
   640,244 : 1,373,800 = 1,373,800 : x
2. Step 2: Convert to fraction form
   640,244/1,373,800 = 1,373,800/x
3. Step 3: Cross multiply
   640,244x = 1,373,800 × 1,373,800
4. Step 4: Simplify right side
   640,244x = 1,887,326,440,000
5. Step 5: Solve for x
   x = 1,887,326,440,000/640,244
6. Step 6: Final answer
   x = 2,947,823.70