Finding the Third Proportional to 1,244,385 and 1,978,650

Step by Step Solution

1. Step 1: Write the proportion equation
   1,244,385 : 1,978,650 = 1,978,650 : x
2. Step 2: Convert to fraction form
   1,244,385/1,978,650 = 1,978,650/x
3. Step 3: Cross multiply
   1,244,385x = 1,978,650 × 1,978,650
4. Step 4: Simplify right side
   1,244,385x = 3,915,055,822,500
5. Step 5: Solve for x
   x = 3,915,055,822,500/1,244,385
6. Step 6: Final answer
   x = 3,146,177.29