Finding the Third Proportional to 2,431,818 and 4,172,591

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,818 : 4,172,591 = 4,172,591 : x
2. Step 2: Convert to fraction form
   2,431,818/4,172,591 = 4,172,591/x
3. Step 3: Cross multiply
   2,431,818x = 4,172,591 × 4,172,591
4. Step 4: Simplify right side
   2,431,818x = 17,410,515,653,281
5. Step 5: Solve for x
   x = 17,410,515,653,281/2,431,818
6. Step 6: Final answer
   x = 7,159,464.92