Finding the Third Proportional to 2,565,640 and 5,538,064

Step by Step Solution

1. Step 1: Write the proportion equation
   2,565,640 : 5,538,064 = 5,538,064 : x
2. Step 2: Convert to fraction form
   2,565,640/5,538,064 = 5,538,064/x
3. Step 3: Cross multiply
   2,565,640x = 5,538,064 × 5,538,064
4. Step 4: Simplify right side
   2,565,640x = 30,670,152,868,096
5. Step 5: Solve for x
   x = 30,670,152,868,096/2,565,640
6. Step 6: Final answer
   x = 11,954,191.89