Finding the Third Proportional to 172,096.50 and 372,789

Step by Step Solution

1. Step 1: Write the proportion equation
   172,096.50 : 372,789 = 372,789 : x
2. Step 2: Convert to fraction form
   172,096.50/372,789 = 372,789/x
3. Step 3: Cross multiply
   172,096.50x = 372,789 × 372,789
4. Step 4: Simplify right side
   172,096.50x = 138,971,638,521
5. Step 5: Solve for x
   x = 138,971,638,521/172,096.50
6. Step 6: Final answer
   x = 807,521.59