Finding the Third Proportional to 3,478,140 and 5,519,502

Step by Step Solution

1. Step 1: Write the proportion equation
   3,478,140 : 5,519,502 = 5,519,502 : x
2. Step 2: Convert to fraction form
   3,478,140/5,519,502 = 5,519,502/x
3. Step 3: Cross multiply
   3,478,140x = 5,519,502 × 5,519,502
4. Step 4: Simplify right side
   3,478,140x = 30,464,902,328,004
5. Step 5: Solve for x
   x = 30,464,902,328,004/3,478,140
6. Step 6: Final answer
   x = 8,758,963.79