Finding the Third Proportional to 83,187 and 178,443

Step by Step Solution

1. Step 1: Write the proportion equation
   83,187 : 178,443 = 178,443 : x
2. Step 2: Convert to fraction form
   83,187/178,443 = 178,443/x
3. Step 3: Cross multiply
   83,187x = 178,443 × 178,443
4. Step 4: Simplify right side
   83,187x = 31,841,904,249
5. Step 5: Solve for x
   x = 31,841,904,249/83,187
6. Step 6: Final answer
   x = 382,775.00