Finding the Third Proportional to 156,690 and 238,706

Step by Step Solution

1. Step 1: Write the proportion equation
   156,690 : 238,706 = 238,706 : x
2. Step 2: Convert to fraction form
   156,690/238,706 = 238,706/x
3. Step 3: Cross multiply
   156,690x = 238,706 × 238,706
4. Step 4: Simplify right side
   156,690x = 56,980,554,436
5. Step 5: Solve for x
   x = 56,980,554,436/156,690
6. Step 6: Final answer
   x = 363,651.51