Finding the Third Proportional to 195,633.50 and 428,770

Step by Step Solution

1. Step 1: Write the proportion equation
   195,633.50 : 428,770 = 428,770 : x
2. Step 2: Convert to fraction form
   195,633.50/428,770 = 428,770/x
3. Step 3: Cross multiply
   195,633.50x = 428,770 × 428,770
4. Step 4: Simplify right side
   195,633.50x = 183,843,712,900
5. Step 5: Solve for x
   x = 183,843,712,900/195,633.50
6. Step 6: Final answer
   x = 939,735.34