Finding the Third Proportional to 88,630 and 191,345

Step by Step Solution

1. Step 1: Write the proportion equation
   88,630 : 191,345 = 191,345 : x
2. Step 2: Convert to fraction form
   88,630/191,345 = 191,345/x
3. Step 3: Cross multiply
   88,630x = 191,345 × 191,345
4. Step 4: Simplify right side
   88,630x = 36,612,909,025
5. Step 5: Solve for x
   x = 36,612,909,025/88,630
6. Step 6: Final answer
   x = 413,098.38