Finding the Third Proportional to 5,648,456 and 8,620,480

Step by Step Solution

1. Step 1: Write the proportion equation
   5,648,456 : 8,620,480 = 8,620,480 : x
2. Step 2: Convert to fraction form
   5,648,456/8,620,480 = 8,620,480/x
3. Step 3: Cross multiply
   5,648,456x = 8,620,480 × 8,620,480
4. Step 4: Simplify right side
   5,648,456x = 74,312,675,430,400
5. Step 5: Solve for x
   x = 74,312,675,430,400/5,648,456
6. Step 6: Final answer
   x = 13,156,281.19