Finding the Third Proportional to 172,570.50 and 377,176.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,570.50 : 377,176.50 = 377,176.50 : x
2. Step 2: Convert to fraction form
   172,570.50/377,176.50 = 377,176.50/x
3. Step 3: Cross multiply
   172,570.50x = 377,176.50 × 377,176.50
4. Step 4: Simplify right side
   172,570.50x = 142,262,112,152.25
5. Step 5: Solve for x
   x = 142,262,112,152.25/172,570.50
6. Step 6: Final answer
   x = 824,370.98