Finding the Third Proportional to 399,198 and 602,941.50

Step by Step Solution

1. Step 1: Write the proportion equation
   399,198 : 602,941.50 = 602,941.50 : x
2. Step 2: Convert to fraction form
   399,198/602,941.50 = 602,941.50/x
3. Step 3: Cross multiply
   399,198x = 602,941.50 × 602,941.50
4. Step 4: Simplify right side
   399,198x = 363,538,452,422.25
5. Step 5: Solve for x
   x = 363,538,452,422.25/399,198
6. Step 6: Final answer
   x = 910,672.03