Finding the Third Proportional to 72,813 and 103,144.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,813 : 103,144.50 = 103,144.50 : x
2. Step 2: Convert to fraction form
   72,813/103,144.50 = 103,144.50/x
3. Step 3: Cross multiply
   72,813x = 103,144.50 × 103,144.50
4. Step 4: Simplify right side
   72,813x = 10,638,787,880.25
5. Step 5: Solve for x
   x = 10,638,787,880.25/72,813
6. Step 6: Final answer
   x = 146,111.10