Finding the Third Proportional to 2,900,780 and 6,147,328

Step by Step Solution

1. Step 1: Write the proportion equation
   2,900,780 : 6,147,328 = 6,147,328 : x
2. Step 2: Convert to fraction form
   2,900,780/6,147,328 = 6,147,328/x
3. Step 3: Cross multiply
   2,900,780x = 6,147,328 × 6,147,328
4. Step 4: Simplify right side
   2,900,780x = 37,789,641,539,584
5. Step 5: Solve for x
   x = 37,789,641,539,584/2,900,780
6. Step 6: Final answer
   x = 13,027,406.95