Finding the Third Proportional to 2,431,375 and 5,290,861

Step by Step Solution

1. Step 1: Write the proportion equation
   2,431,375 : 5,290,861 = 5,290,861 : x
2. Step 2: Convert to fraction form
   2,431,375/5,290,861 = 5,290,861/x
3. Step 3: Cross multiply
   2,431,375x = 5,290,861 × 5,290,861
4. Step 4: Simplify right side
   2,431,375x = 27,993,210,121,321
5. Step 5: Solve for x
   x = 27,993,210,121,321/2,431,375
6. Step 6: Final answer
   x = 11,513,324.81