Finding the Third Proportional to 436,816 and 658,300

Step by Step Solution

1. Step 1: Write the proportion equation
   436,816 : 658,300 = 658,300 : x
2. Step 2: Convert to fraction form
   436,816/658,300 = 658,300/x
3. Step 3: Cross multiply
   436,816x = 658,300 × 658,300
4. Step 4: Simplify right side
   436,816x = 433,358,890,000
5. Step 5: Solve for x
   x = 433,358,890,000/436,816
6. Step 6: Final answer
   x = 992,085.66