Finding the Third Proportional to 3,478,472 and 5,201,716

Step by Step Solution

1. Step 1: Write the proportion equation
   3,478,472 : 5,201,716 = 5,201,716 : x
2. Step 2: Convert to fraction form
   3,478,472/5,201,716 = 5,201,716/x
3. Step 3: Cross multiply
   3,478,472x = 5,201,716 × 5,201,716
4. Step 4: Simplify right side
   3,478,472x = 27,057,849,344,656
5. Step 5: Solve for x
   x = 27,057,849,344,656/3,478,472
6. Step 6: Final answer
   x = 7,778,659.52