Finding the Third Proportional to 195,854 and 403,300

Step by Step Solution

1. Step 1: Write the proportion equation
   195,854 : 403,300 = 403,300 : x
2. Step 2: Convert to fraction form
   195,854/403,300 = 403,300/x
3. Step 3: Cross multiply
   195,854x = 403,300 × 403,300
4. Step 4: Simplify right side
   195,854x = 162,650,890,000
5. Step 5: Solve for x
   x = 162,650,890,000/195,854
6. Step 6: Final answer
   x = 830,470.10