Finding the Third Proportional to 630,587.50 and 1,383,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   630,587.50 : 1,383,809.50 = 1,383,809.50 : x
2. Step 2: Convert to fraction form
   630,587.50/1,383,809.50 = 1,383,809.50/x
3. Step 3: Cross multiply
   630,587.50x = 1,383,809.50 × 1,383,809.50
4. Step 4: Simplify right side
   630,587.50x = 1,914,928,732,290.25
5. Step 5: Solve for x
   x = 1,914,928,732,290.25/630,587.50
6. Step 6: Final answer
   x = 3,036,737.54