Finding the Third Proportional to 195,622.50 and 428,748

Step by Step Solution

1. Step 1: Write the proportion equation
   195,622.50 : 428,748 = 428,748 : x
2. Step 2: Convert to fraction form
   195,622.50/428,748 = 428,748/x
3. Step 3: Cross multiply
   195,622.50x = 428,748 × 428,748
4. Step 4: Simplify right side
   195,622.50x = 183,824,847,504
5. Step 5: Solve for x
   x = 183,824,847,504/195,622.50
6. Step 6: Final answer
   x = 939,691.74