Finding the Third Proportional to 983,309.25 and 2,139,664.50

Step by Step Solution

1. Step 1: Write the proportion equation
   983,309.25 : 2,139,664.50 = 2,139,664.50 : x
2. Step 2: Convert to fraction form
   983,309.25/2,139,664.50 = 2,139,664.50/x
3. Step 3: Cross multiply
   983,309.25x = 2,139,664.50 × 2,139,664.50
4. Step 4: Simplify right side
   983,309.25x = 4,578,164,172,560.25
5. Step 5: Solve for x
   x = 4,578,164,172,560.25/983,309.25
6. Step 6: Final answer
   x = 4,655,874.20