Finding the Third Proportional to 78,834.94 and 172,341

Step by Step Solution

1. Step 1: Write the proportion equation
   78,834.94 : 172,341 = 172,341 : x
2. Step 2: Convert to fraction form
   78,834.94/172,341 = 172,341/x
3. Step 3: Cross multiply
   78,834.94x = 172,341 × 172,341
4. Step 4: Simplify right side
   78,834.94x = 29,701,420,281
5. Step 5: Solve for x
   x = 29,701,420,281/78,834.94
6. Step 6: Final answer
   x = 376,754.54