Finding the Third Proportional to 5,490,216 and 7,920,360

Step by Step Solution

1. Step 1: Write the proportion equation
   5,490,216 : 7,920,360 = 7,920,360 : x
2. Step 2: Convert to fraction form
   5,490,216/7,920,360 = 7,920,360/x
3. Step 3: Cross multiply
   5,490,216x = 7,920,360 × 7,920,360
4. Step 4: Simplify right side
   5,490,216x = 62,732,102,529,600
5. Step 5: Solve for x
   x = 62,732,102,529,600/5,490,216
6. Step 6: Final answer
   x = 11,426,162.93