Finding the Third Proportional to 5,742,780 and 8,896,515

Step by Step Solution

1. Step 1: Write the proportion equation
   5,742,780 : 8,896,515 = 8,896,515 : x
2. Step 2: Convert to fraction form
   5,742,780/8,896,515 = 8,896,515/x
3. Step 3: Cross multiply
   5,742,780x = 8,896,515 × 8,896,515
4. Step 4: Simplify right side
   5,742,780x = 79,147,979,145,225
5. Step 5: Solve for x
   x = 79,147,979,145,225/5,742,780
6. Step 6: Final answer
   x = 13,782,171.55