Finding the Third Proportional to 627,648 and 1,381,980

Step by Step Solution

1. Step 1: Write the proportion equation
   627,648 : 1,381,980 = 1,381,980 : x
2. Step 2: Convert to fraction form
   627,648/1,381,980 = 1,381,980/x
3. Step 3: Cross multiply
   627,648x = 1,381,980 × 1,381,980
4. Step 4: Simplify right side
   627,648x = 1,909,868,720,400
5. Step 5: Solve for x
   x = 1,909,868,720,400/627,648
6. Step 6: Final answer
   x = 3,042,897.80