Finding the Third Proportional to 86,940 and 190,500

Step by Step Solution

1. Step 1: Write the proportion equation
   86,940 : 190,500 = 190,500 : x
2. Step 2: Convert to fraction form
   86,940/190,500 = 190,500/x
3. Step 3: Cross multiply
   86,940x = 190,500 × 190,500
4. Step 4: Simplify right side
   86,940x = 36,290,250,000
5. Step 5: Solve for x
   x = 36,290,250,000/86,940
6. Step 6: Final answer
   x = 417,417.18