Finding the Third Proportional to 172,474.50 and 377,011.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,474.50 : 377,011.50 = 377,011.50 : x
2. Step 2: Convert to fraction form
   172,474.50/377,011.50 = 377,011.50/x
3. Step 3: Cross multiply
   172,474.50x = 377,011.50 × 377,011.50
4. Step 4: Simplify right side
   172,474.50x = 142,137,671,132.25
5. Step 5: Solve for x
   x = 142,137,671,132.25/172,474.50
6. Step 6: Final answer
   x = 824,108.32