Finding the Third Proportional to 158,701 and 210,619.50

Step by Step Solution

1. Step 1: Write the proportion equation
   158,701 : 210,619.50 = 210,619.50 : x
2. Step 2: Convert to fraction form
   158,701/210,619.50 = 210,619.50/x
3. Step 3: Cross multiply
   158,701x = 210,619.50 × 210,619.50
4. Step 4: Simplify right side
   158,701x = 44,360,573,780.25
5. Step 5: Solve for x
   x = 44,360,573,780.25/158,701
6. Step 6: Final answer
   x = 279,522.96