Finding the Third Proportional to 91,860.50 and 196,842

Step by Step Solution

1. Step 1: Write the proportion equation
   91,860.50 : 196,842 = 196,842 : x
2. Step 2: Convert to fraction form
   91,860.50/196,842 = 196,842/x
3. Step 3: Cross multiply
   91,860.50x = 196,842 × 196,842
4. Step 4: Simplify right side
   91,860.50x = 38,746,772,964
5. Step 5: Solve for x
   x = 38,746,772,964/91,860.50
6. Step 6: Final answer
   x = 421,800.15