Finding the Third Proportional to 3,294,434 and 7,218,724

Step by Step Solution

1. Step 1: Write the proportion equation
   3,294,434 : 7,218,724 = 7,218,724 : x
2. Step 2: Convert to fraction form
   3,294,434/7,218,724 = 7,218,724/x
3. Step 3: Cross multiply
   3,294,434x = 7,218,724 × 7,218,724
4. Step 4: Simplify right side
   3,294,434x = 52,109,976,188,176
5. Step 5: Solve for x
   x = 52,109,976,188,176/3,294,434
6. Step 6: Final answer
   x = 15,817,580.86