Finding the Third Proportional to 1,211,605.50 and 1,900,818

Step by Step Solution

1. Step 1: Write the proportion equation
   1,211,605.50 : 1,900,818 = 1,900,818 : x
2. Step 2: Convert to fraction form
   1,211,605.50/1,900,818 = 1,900,818/x
3. Step 3: Cross multiply
   1,211,605.50x = 1,900,818 × 1,900,818
4. Step 4: Simplify right side
   1,211,605.50x = 3,613,109,069,124
5. Step 5: Solve for x
   x = 3,613,109,069,124/1,211,605.50
6. Step 6: Final answer
   x = 2,982,083.75