Finding the Third Proportional to 536,454 and 810,148.50

Step by Step Solution

1. Step 1: Write the proportion equation
   536,454 : 810,148.50 = 810,148.50 : x
2. Step 2: Convert to fraction form
   536,454/810,148.50 = 810,148.50/x
3. Step 3: Cross multiply
   536,454x = 810,148.50 × 810,148.50
4. Step 4: Simplify right side
   536,454x = 656,340,592,052.25
5. Step 5: Solve for x
   x = 656,340,592,052.25/536,454
6. Step 6: Final answer
   x = 1,223,479.72