Finding the Third Proportional to 91,090.50 and 195,789

Step by Step Solution

1. Step 1: Write the proportion equation
   91,090.50 : 195,789 = 195,789 : x
2. Step 2: Convert to fraction form
   91,090.50/195,789 = 195,789/x
3. Step 3: Cross multiply
   91,090.50x = 195,789 × 195,789
4. Step 4: Simplify right side
   91,090.50x = 38,333,332,521
5. Step 5: Solve for x
   x = 38,333,332,521/91,090.50
6. Step 6: Final answer
   x = 420,826.90