Finding the Third Proportional to 172,300.50 and 372,276

Step by Step Solution

1. Step 1: Write the proportion equation
   172,300.50 : 372,276 = 372,276 : x
2. Step 2: Convert to fraction form
   172,300.50/372,276 = 372,276/x
3. Step 3: Cross multiply
   172,300.50x = 372,276 × 372,276
4. Step 4: Simplify right side
   172,300.50x = 138,589,420,176
5. Step 5: Solve for x
   x = 138,589,420,176/172,300.50
6. Step 6: Final answer
   x = 804,347.17