Finding the Third Proportional to 88,312 and 189,250

Step by Step Solution

1. Step 1: Write the proportion equation
   88,312 : 189,250 = 189,250 : x
2. Step 2: Convert to fraction form
   88,312/189,250 = 189,250/x
3. Step 3: Cross multiply
   88,312x = 189,250 × 189,250
4. Step 4: Simplify right side
   88,312x = 35,815,562,500
5. Step 5: Solve for x
   x = 35,815,562,500/88,312
6. Step 6: Final answer
   x = 405,557.14