Finding the Third Proportional to 351,729 and 545,440.50

Step by Step Solution

1. Step 1: Write the proportion equation
   351,729 : 545,440.50 = 545,440.50 : x
2. Step 2: Convert to fraction form
   351,729/545,440.50 = 545,440.50/x
3. Step 3: Cross multiply
   351,729x = 545,440.50 × 545,440.50
4. Step 4: Simplify right side
   351,729x = 297,505,339,040.25
5. Step 5: Solve for x
   x = 297,505,339,040.25/351,729
6. Step 6: Final answer
   x = 845,836.82