Finding the Third Proportional to 72,870.50 and 159,241.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,870.50 : 159,241.50 = 159,241.50 : x
2. Step 2: Convert to fraction form
   72,870.50/159,241.50 = 159,241.50/x
3. Step 3: Cross multiply
   72,870.50x = 159,241.50 × 159,241.50
4. Step 4: Simplify right side
   72,870.50x = 25,357,855,322.25
5. Step 5: Solve for x
   x = 25,357,855,322.25/72,870.50
6. Step 6: Final answer
   x = 347,985.20