Finding the Third Proportional to 2,158,366 and 3,118,209

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158,366 : 3,118,209 = 3,118,209 : x
2. Step 2: Convert to fraction form
   2,158,366/3,118,209 = 3,118,209/x
3. Step 3: Cross multiply
   2,158,366x = 3,118,209 × 3,118,209
4. Step 4: Simplify right side
   2,158,366x = 9,723,227,367,681
5. Step 5: Solve for x
   x = 9,723,227,367,681/2,158,366
6. Step 6: Final answer
   x = 4,504,902.03