Finding the Third Proportional to 1,615,311.25 and 3,524,022.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,615,311.25 : 3,524,022.50 = 3,524,022.50 : x
2. Step 2: Convert to fraction form
   1,615,311.25/3,524,022.50 = 3,524,022.50/x
3. Step 3: Cross multiply
   1,615,311.25x = 3,524,022.50 × 3,524,022.50
4. Step 4: Simplify right side
   1,615,311.25x = 12,418,734,580,506.25
5. Step 5: Solve for x
   x = 12,418,734,580,506.25/1,615,311.25
6. Step 6: Final answer
   x = 7,688,137.24