Finding the Third Proportional to 72,479.63 and 146,906.25

Step by Step Solution

1. Step 1: Write the proportion equation
   72,479.63 : 146,906.25 = 146,906.25 : x
2. Step 2: Convert to fraction form
   72,479.63/146,906.25 = 146,906.25/x
3. Step 3: Cross multiply
   72,479.63x = 146,906.25 × 146,906.25
4. Step 4: Simplify right side
   72,479.63x = 21,581,446,289.06
5. Step 5: Solve for x
   x = 21,581,446,289.06/72,479.63
6. Step 6: Final answer
   x = 297,758.80