Finding the Third Proportional to 2,345,978.25 and 5,140,359

Step by Step Solution

1. Step 1: Write the proportion equation
   2,345,978.25 : 5,140,359 = 5,140,359 : x
2. Step 2: Convert to fraction form
   2,345,978.25/5,140,359 = 5,140,359/x
3. Step 3: Cross multiply
   2,345,978.25x = 5,140,359 × 5,140,359
4. Step 4: Simplify right side
   2,345,978.25x = 26,423,290,648,881
5. Step 5: Solve for x
   x = 26,423,290,648,881/2,345,978.25
6. Step 6: Final answer
   x = 11,263,229.17