Finding the Third Proportional to 397,656 and 602,275.50

Step by Step Solution

1. Step 1: Write the proportion equation
   397,656 : 602,275.50 = 602,275.50 : x
2. Step 2: Convert to fraction form
   397,656/602,275.50 = 602,275.50/x
3. Step 3: Cross multiply
   397,656x = 602,275.50 × 602,275.50
4. Step 4: Simplify right side
   397,656x = 362,735,777,900.25
5. Step 5: Solve for x
   x = 362,735,777,900.25/397,656
6. Step 6: Final answer
   x = 912,184.85