Finding the Third Proportional to 546,915 and 839,524.50

Step by Step Solution

1. Step 1: Write the proportion equation
   546,915 : 839,524.50 = 839,524.50 : x
2. Step 2: Convert to fraction form
   546,915/839,524.50 = 839,524.50/x
3. Step 3: Cross multiply
   546,915x = 839,524.50 × 839,524.50
4. Step 4: Simplify right side
   546,915x = 704,801,386,100.25
5. Step 5: Solve for x
   x = 704,801,386,100.25/546,915
6. Step 6: Final answer
   x = 1,288,685.42