Finding the Third Proportional to 165,300 and 245,520

Step by Step Solution

1. Step 1: Write the proportion equation
   165,300 : 245,520 = 245,520 : x
2. Step 2: Convert to fraction form
   165,300/245,520 = 245,520/x
3. Step 3: Cross multiply
   165,300x = 245,520 × 245,520
4. Step 4: Simplify right side
   165,300x = 60,280,070,400
5. Step 5: Solve for x
   x = 60,280,070,400/165,300
6. Step 6: Final answer
   x = 364,670.72