Finding the Third Proportional to 2,788,470 and 5,911,915.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,788,470 : 5,911,915.50 = 5,911,915.50 : x
2. Step 2: Convert to fraction form
   2,788,470/5,911,915.50 = 5,911,915.50/x
3. Step 3: Cross multiply
   2,788,470x = 5,911,915.50 × 5,911,915.50
4. Step 4: Simplify right side
   2,788,470x = 34,950,744,879,140.25
5. Step 5: Solve for x
   x = 34,950,744,879,140.25/2,788,470
6. Step 6: Final answer
   x = 12,534,022.20