Finding the Third Proportional to 172,563 and 403,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   172,563 : 403,381.50 = 403,381.50 : x
2. Step 2: Convert to fraction form
   172,563/403,381.50 = 403,381.50/x
3. Step 3: Cross multiply
   172,563x = 403,381.50 × 403,381.50
4. Step 4: Simplify right side
   172,563x = 162,716,634,542.25
5. Step 5: Solve for x
   x = 162,716,634,542.25/172,563
6. Step 6: Final answer
   x = 942,940.46