Finding the Third Proportional to 355,300.50 and 546,124.50

Step by Step Solution

1. Step 1: Write the proportion equation
   355,300.50 : 546,124.50 = 546,124.50 : x
2. Step 2: Convert to fraction form
   355,300.50/546,124.50 = 546,124.50/x
3. Step 3: Cross multiply
   355,300.50x = 546,124.50 × 546,124.50
4. Step 4: Simplify right side
   355,300.50x = 298,251,969,500.25
5. Step 5: Solve for x
   x = 298,251,969,500.25/355,300.50
6. Step 6: Final answer
   x = 839,435.83