Finding the Third Proportional to 359,956 and 550,842

Step by Step Solution

1. Step 1: Write the proportion equation
   359,956 : 550,842 = 550,842 : x
2. Step 2: Convert to fraction form
   359,956/550,842 = 550,842/x
3. Step 3: Cross multiply
   359,956x = 550,842 × 550,842
4. Step 4: Simplify right side
   359,956x = 303,426,908,964
5. Step 5: Solve for x
   x = 303,426,908,964/359,956
6. Step 6: Final answer
   x = 842,955.55