Finding the Third Proportional to 6,243,540 and 13,621,506

Step by Step Solution

1. Step 1: Write the proportion equation
   6,243,540 : 13,621,506 = 13,621,506 : x
2. Step 2: Convert to fraction form
   6,243,540/13,621,506 = 13,621,506/x
3. Step 3: Cross multiply
   6,243,540x = 13,621,506 × 13,621,506
4. Step 4: Simplify right side
   6,243,540x = 185,545,425,708,036
5. Step 5: Solve for x
   x = 185,545,425,708,036/6,243,540
6. Step 6: Final answer
   x = 29,717,984.62