Finding the Third Proportional to 156,790 and 238,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   156,790 : 238,870.50 = 238,870.50 : x
2. Step 2: Convert to fraction form
   156,790/238,870.50 = 238,870.50/x
3. Step 3: Cross multiply
   156,790x = 238,870.50 × 238,870.50
4. Step 4: Simplify right side
   156,790x = 57,059,115,770.25
5. Step 5: Solve for x
   x = 57,059,115,770.25/156,790
6. Step 6: Final answer
   x = 363,920.63