Finding the Third Proportional to 2,553,418 and 3,959,160

Step by Step Solution

1. Step 1: Write the proportion equation
   2,553,418 : 3,959,160 = 3,959,160 : x
2. Step 2: Convert to fraction form
   2,553,418/3,959,160 = 3,959,160/x
3. Step 3: Cross multiply
   2,553,418x = 3,959,160 × 3,959,160
4. Step 4: Simplify right side
   2,553,418x = 15,674,947,905,600
5. Step 5: Solve for x
   x = 15,674,947,905,600/2,553,418
6. Step 6: Final answer
   x = 6,138,809.98