Finding the Third Proportional to 78,504 and 171,937.50

Step by Step Solution

1. Step 1: Write the proportion equation
   78,504 : 171,937.50 = 171,937.50 : x
2. Step 2: Convert to fraction form
   78,504/171,937.50 = 171,937.50/x
3. Step 3: Cross multiply
   78,504x = 171,937.50 × 171,937.50
4. Step 4: Simplify right side
   78,504x = 29,562,503,906.25
5. Step 5: Solve for x
   x = 29,562,503,906.25/78,504
6. Step 6: Final answer
   x = 376,573.22