Finding the Third Proportional to 143,052 and 307,920

Step by Step Solution

1. Step 1: Write the proportion equation
   143,052 : 307,920 = 307,920 : x
2. Step 2: Convert to fraction form
   143,052/307,920 = 307,920/x
3. Step 3: Cross multiply
   143,052x = 307,920 × 307,920
4. Step 4: Simplify right side
   143,052x = 94,814,726,400
5. Step 5: Solve for x
   x = 94,814,726,400/143,052
6. Step 6: Final answer
   x = 662,799.03