Finding the Third Proportional to 359,498 and 550,155

Step by Step Solution

1. Step 1: Write the proportion equation
   359,498 : 550,155 = 550,155 : x
2. Step 2: Convert to fraction form
   359,498/550,155 = 550,155/x
3. Step 3: Cross multiply
   359,498x = 550,155 × 550,155
4. Step 4: Simplify right side
   359,498x = 302,670,524,025
5. Step 5: Solve for x
   x = 302,670,524,025/359,498
6. Step 6: Final answer
   x = 841,925.47