Finding the Third Proportional to 7,750,290 and 12,761,662

Step by Step Solution

1. Step 1: Write the proportion equation
   7,750,290 : 12,761,662 = 12,761,662 : x
2. Step 2: Convert to fraction form
   7,750,290/12,761,662 = 12,761,662/x
3. Step 3: Cross multiply
   7,750,290x = 12,761,662 × 12,761,662
4. Step 4: Simplify right side
   7,750,290x = 162,860,017,002,244
5. Step 5: Solve for x
   x = 162,860,017,002,244/7,750,290
6. Step 6: Final answer
   x = 21,013,409.43