Finding the Third Proportional to 544,620 and 813,649.50

Step by Step Solution

1. Step 1: Write the proportion equation
   544,620 : 813,649.50 = 813,649.50 : x
2. Step 2: Convert to fraction form
   544,620/813,649.50 = 813,649.50/x
3. Step 3: Cross multiply
   544,620x = 813,649.50 × 813,649.50
4. Step 4: Simplify right side
   544,620x = 662,025,508,850.25
5. Step 5: Solve for x
   x = 662,025,508,850.25/544,620
6. Step 6: Final answer
   x = 1,215,573.26