Finding the Third Proportional to 1,531,685 and 3,299,691

Step by Step Solution

1. Step 1: Write the proportion equation
   1,531,685 : 3,299,691 = 3,299,691 : x
2. Step 2: Convert to fraction form
   1,531,685/3,299,691 = 3,299,691/x
3. Step 3: Cross multiply
   1,531,685x = 3,299,691 × 3,299,691
4. Step 4: Simplify right side
   1,531,685x = 10,887,960,695,481
5. Step 5: Solve for x
   x = 10,887,960,695,481/1,531,685
6. Step 6: Final answer
   x = 7,108,485.55