Finding the Third Proportional to 72,582.75 and 148,081.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,582.75 : 148,081.50 = 148,081.50 : x
2. Step 2: Convert to fraction form
   72,582.75/148,081.50 = 148,081.50/x
3. Step 3: Cross multiply
   72,582.75x = 148,081.50 × 148,081.50
4. Step 4: Simplify right side
   72,582.75x = 21,928,130,642.25
5. Step 5: Solve for x
   x = 21,928,130,642.25/72,582.75
6. Step 6: Final answer
   x = 302,112.15