Finding the Third Proportional to 3,430,685 and 7,305,088

Step by Step Solution

1. Step 1: Write the proportion equation
   3,430,685 : 7,305,088 = 7,305,088 : x
2. Step 2: Convert to fraction form
   3,430,685/7,305,088 = 7,305,088/x
3. Step 3: Cross multiply
   3,430,685x = 7,305,088 × 7,305,088
4. Step 4: Simplify right side
   3,430,685x = 53,364,310,687,744
5. Step 5: Solve for x
   x = 53,364,310,687,744/3,430,685
6. Step 6: Final answer
   x = 15,555,001.61