Finding the Third Proportional to 72,802.50 and 159,880.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,802.50 : 159,880.50 = 159,880.50 : x
2. Step 2: Convert to fraction form
   72,802.50/159,880.50 = 159,880.50/x
3. Step 3: Cross multiply
   72,802.50x = 159,880.50 × 159,880.50
4. Step 4: Simplify right side
   72,802.50x = 25,561,774,280.25
5. Step 5: Solve for x
   x = 25,561,774,280.25/72,802.50
6. Step 6: Final answer
   x = 351,111.22