Finding the Third Proportional to 72,906 and 156,988

Step by Step Solution

1. Step 1: Write the proportion equation
   72,906 : 156,988 = 156,988 : x
2. Step 2: Convert to fraction form
   72,906/156,988 = 156,988/x
3. Step 3: Cross multiply
   72,906x = 156,988 × 156,988
4. Step 4: Simplify right side
   72,906x = 24,645,232,144
5. Step 5: Solve for x
   x = 24,645,232,144/72,906
6. Step 6: Final answer
   x = 338,041.21