Finding the Third Proportional to 2,578,374 and 5,615,514

Step by Step Solution

1. Step 1: Write the proportion equation
   2,578,374 : 5,615,514 = 5,615,514 : x
2. Step 2: Convert to fraction form
   2,578,374/5,615,514 = 5,615,514/x
3. Step 3: Cross multiply
   2,578,374x = 5,615,514 × 5,615,514
4. Step 4: Simplify right side
   2,578,374x = 31,533,997,484,196
5. Step 5: Solve for x
   x = 31,533,997,484,196/2,578,374
6. Step 6: Final answer
   x = 12,230,187.51