Finding the Third Proportional to 543,700.50 and 1,279,223.25

Step by Step Solution

1. Step 1: Write the proportion equation
   543,700.50 : 1,279,223.25 = 1,279,223.25 : x
2. Step 2: Convert to fraction form
   543,700.50/1,279,223.25 = 1,279,223.25/x
3. Step 3: Cross multiply
   543,700.50x = 1,279,223.25 × 1,279,223.25
4. Step 4: Simplify right side
   543,700.50x = 1,636,412,123,340.56
5. Step 5: Solve for x
   x = 1,636,412,123,340.56/543,700.50
6. Step 6: Final answer
   x = 3,009,767.55