Finding the Third Proportional to 423,190.50 and 656,007

Step by Step Solution

1. Step 1: Write the proportion equation
   423,190.50 : 656,007 = 656,007 : x
2. Step 2: Convert to fraction form
   423,190.50/656,007 = 656,007/x
3. Step 3: Cross multiply
   423,190.50x = 656,007 × 656,007
4. Step 4: Simplify right side
   423,190.50x = 430,345,184,049
5. Step 5: Solve for x
   x = 430,345,184,049/423,190.50
6. Step 6: Final answer
   x = 1,016,906.53