Finding the Third Proportional to 156,818 and 238,912

Step by Step Solution

1. Step 1: Write the proportion equation
   156,818 : 238,912 = 238,912 : x
2. Step 2: Convert to fraction form
   156,818/238,912 = 238,912/x
3. Step 3: Cross multiply
   156,818x = 238,912 × 238,912
4. Step 4: Simplify right side
   156,818x = 57,078,943,744
5. Step 5: Solve for x
   x = 57,078,943,744/156,818
6. Step 6: Final answer
   x = 363,982.09