Finding the Third Proportional to 642,483 and 844,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   642,483 : 844,339.50 = 844,339.50 : x
2. Step 2: Convert to fraction form
   642,483/844,339.50 = 844,339.50/x
3. Step 3: Cross multiply
   642,483x = 844,339.50 × 844,339.50
4. Step 4: Simplify right side
   642,483x = 712,909,191,260.25
5. Step 5: Solve for x
   x = 712,909,191,260.25/642,483
6. Step 6: Final answer
   x = 1,109,615.65