Finding the Third Proportional to 351,807 and 545,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   351,807 : 545,086.50 = 545,086.50 : x
2. Step 2: Convert to fraction form
   351,807/545,086.50 = 545,086.50/x
3. Step 3: Cross multiply
   351,807x = 545,086.50 × 545,086.50
4. Step 4: Simplify right side
   351,807x = 297,119,292,482.25
5. Step 5: Solve for x
   x = 297,119,292,482.25/351,807
6. Step 6: Final answer
   x = 844,551.96