Finding the Third Proportional to 651,990 and 1,374,780

Step by Step Solution

1. Step 1: Write the proportion equation
   651,990 : 1,374,780 = 1,374,780 : x
2. Step 2: Convert to fraction form
   651,990/1,374,780 = 1,374,780/x
3. Step 3: Cross multiply
   651,990x = 1,374,780 × 1,374,780
4. Step 4: Simplify right side
   651,990x = 1,890,020,048,400
5. Step 5: Solve for x
   x = 1,890,020,048,400/651,990
6. Step 6: Final answer
   x = 2,898,848.22