Finding the Third Proportional to 72,903 and 105,358.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,903 : 105,358.50 = 105,358.50 : x
2. Step 2: Convert to fraction form
   72,903/105,358.50 = 105,358.50/x
3. Step 3: Cross multiply
   72,903x = 105,358.50 × 105,358.50
4. Step 4: Simplify right side
   72,903x = 11,100,413,522.25
5. Step 5: Solve for x
   x = 11,100,413,522.25/72,903
6. Step 6: Final answer
   x = 152,262.78