Finding the Third Proportional to 4,200,888 and 8,555,865

Step by Step Solution

1. Step 1: Write the proportion equation
   4,200,888 : 8,555,865 = 8,555,865 : x
2. Step 2: Convert to fraction form
   4,200,888/8,555,865 = 8,555,865/x
3. Step 3: Cross multiply
   4,200,888x = 8,555,865 × 8,555,865
4. Step 4: Simplify right side
   4,200,888x = 73,202,825,898,225
5. Step 5: Solve for x
   x = 73,202,825,898,225/4,200,888
6. Step 6: Final answer
   x = 17,425,560.00