Finding the Third Proportional to 2,978,769 and 6,429,930.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,978,769 : 6,429,930.50 = 6,429,930.50 : x
2. Step 2: Convert to fraction form
   2,978,769/6,429,930.50 = 6,429,930.50/x
3. Step 3: Cross multiply
   2,978,769x = 6,429,930.50 × 6,429,930.50
4. Step 4: Simplify right side
   2,978,769x = 41,344,006,234,830.25
5. Step 5: Solve for x
   x = 41,344,006,234,830.25/2,978,769
6. Step 6: Final answer
   x = 13,879,561.07