Finding the Third Proportional to 355,707 and 546,682.50

Step by Step Solution

1. Step 1: Write the proportion equation
   355,707 : 546,682.50 = 546,682.50 : x
2. Step 2: Convert to fraction form
   355,707/546,682.50 = 546,682.50/x
3. Step 3: Cross multiply
   355,707x = 546,682.50 × 546,682.50
4. Step 4: Simplify right side
   355,707x = 298,861,755,806.25
5. Step 5: Solve for x
   x = 298,861,755,806.25/355,707
6. Step 6: Final answer
   x = 840,190.82