Finding the Third Proportional to 999,443.81 and 1,581,208.31

Step by Step Solution

1. Step 1: Write the proportion equation
   999,443.81 : 1,581,208.31 = 1,581,208.31 : x
2. Step 2: Convert to fraction form
   999,443.81/1,581,208.31 = 1,581,208.31/x
3. Step 3: Cross multiply
   999,443.81x = 1,581,208.31 × 1,581,208.31
4. Step 4: Simplify right side
   999,443.81x = 2,500,219,727,519.10
5. Step 5: Solve for x
   x = 2,500,219,727,519.10/999,443.81
6. Step 6: Final answer
   x = 2,501,611.09