Finding the Third Proportional to 197,190 and 431,695.50

Step by Step Solution

1. Step 1: Write the proportion equation
   197,190 : 431,695.50 = 431,695.50 : x
2. Step 2: Convert to fraction form
   197,190/431,695.50 = 431,695.50/x
3. Step 3: Cross multiply
   197,190x = 431,695.50 × 431,695.50
4. Step 4: Simplify right side
   197,190x = 186,361,004,720.25
5. Step 5: Solve for x
   x = 186,361,004,720.25/197,190
6. Step 6: Final answer
   x = 945,083.45