Finding the Third Proportional to 543,145.50 and 798,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   543,145.50 : 798,079.50 = 798,079.50 : x
2. Step 2: Convert to fraction form
   543,145.50/798,079.50 = 798,079.50/x
3. Step 3: Cross multiply
   543,145.50x = 798,079.50 × 798,079.50
4. Step 4: Simplify right side
   543,145.50x = 636,930,888,320.25
5. Step 5: Solve for x
   x = 636,930,888,320.25/543,145.50
6. Step 6: Final answer
   x = 1,172,670.84