Finding the Third Proportional to 3,457,783.69 and 5,555,731.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,457,783.69 : 5,555,731.78 = 5,555,731.78 : x
2. Step 2: Convert to fraction form
   3,457,783.69/5,555,731.78 = 5,555,731.78/x
3. Step 3: Cross multiply
   3,457,783.69x = 5,555,731.78 × 5,555,731.78
4. Step 4: Simplify right side
   3,457,783.69x = 30,866,155,625,191.30
5. Step 5: Solve for x
   x = 30,866,155,625,191.30/3,457,783.69
6. Step 6: Final answer
   x = 8,926,572.17