Finding the Third Proportional to 2,278,502 and 5,378,633

Step by Step Solution

1. Step 1: Write the proportion equation
   2,278,502 : 5,378,633 = 5,378,633 : x
2. Step 2: Convert to fraction form
   2,278,502/5,378,633 = 5,378,633/x
3. Step 3: Cross multiply
   2,278,502x = 5,378,633 × 5,378,633
4. Step 4: Simplify right side
   2,278,502x = 28,929,692,948,689
5. Step 5: Solve for x
   x = 28,929,692,948,689/2,278,502
6. Step 6: Final answer
   x = 12,696,803.84