Finding the Third Proportional to 707,878.50 and 1,540,155

Step by Step Solution

1. Step 1: Write the proportion equation
   707,878.50 : 1,540,155 = 1,540,155 : x
2. Step 2: Convert to fraction form
   707,878.50/1,540,155 = 1,540,155/x
3. Step 3: Cross multiply
   707,878.50x = 1,540,155 × 1,540,155
4. Step 4: Simplify right side
   707,878.50x = 2,372,077,424,025
5. Step 5: Solve for x
   x = 2,372,077,424,025/707,878.50
6. Step 6: Final answer
   x = 3,350,966.90