Finding the Third Proportional to 72,790 and 103,110

Step by Step Solution

1. Step 1: Write the proportion equation
   72,790 : 103,110 = 103,110 : x
2. Step 2: Convert to fraction form
   72,790/103,110 = 103,110/x
3. Step 3: Cross multiply
   72,790x = 103,110 × 103,110
4. Step 4: Simplify right side
   72,790x = 10,631,672,100
5. Step 5: Solve for x
   x = 10,631,672,100/72,790
6. Step 6: Final answer
   x = 146,059.52