Finding the Third Proportional to 91,808 and 197,008

Step by Step Solution

1. Step 1: Write the proportion equation
   91,808 : 197,008 = 197,008 : x
2. Step 2: Convert to fraction form
   91,808/197,008 = 197,008/x
3. Step 3: Cross multiply
   91,808x = 197,008 × 197,008
4. Step 4: Simplify right side
   91,808x = 38,812,152,064
5. Step 5: Solve for x
   x = 38,812,152,064/91,808
6. Step 6: Final answer
   x = 422,753.49