Finding the Third Proportional to 88,677 and 188,856

Step by Step Solution

1. Step 1: Write the proportion equation
   88,677 : 188,856 = 188,856 : x
2. Step 2: Convert to fraction form
   88,677/188,856 = 188,856/x
3. Step 3: Cross multiply
   88,677x = 188,856 × 188,856
4. Step 4: Simplify right side
   88,677x = 35,666,588,736
5. Step 5: Solve for x
   x = 35,666,588,736/88,677
6. Step 6: Final answer
   x = 402,207.89