Finding the Third Proportional to 72,705 and 156,868

Step by Step Solution

1. Step 1: Write the proportion equation
   72,705 : 156,868 = 156,868 : x
2. Step 2: Convert to fraction form
   72,705/156,868 = 156,868/x
3. Step 3: Cross multiply
   72,705x = 156,868 × 156,868
4. Step 4: Simplify right side
   72,705x = 24,607,569,424
5. Step 5: Solve for x
   x = 24,607,569,424/72,705
6. Step 6: Final answer
   x = 338,457.73