Finding the Third Proportional to 72,638.25 and 156,948

Step by Step Solution

1. Step 1: Write the proportion equation
   72,638.25 : 156,948 = 156,948 : x
2. Step 2: Convert to fraction form
   72,638.25/156,948 = 156,948/x
3. Step 3: Cross multiply
   72,638.25x = 156,948 × 156,948
4. Step 4: Simplify right side
   72,638.25x = 24,632,674,704
5. Step 5: Solve for x
   x = 24,632,674,704/72,638.25
6. Step 6: Final answer
   x = 339,114.37