Finding the Third Proportional to 35,217.28 and 72,054.56

Step by Step Solution

1. Step 1: Write the proportion equation
   35,217.28 : 72,054.56 = 72,054.56 : x
2. Step 2: Convert to fraction form
   35,217.28/72,054.56 = 72,054.56/x
3. Step 3: Cross multiply
   35,217.28x = 72,054.56 × 72,054.56
4. Step 4: Simplify right side
   35,217.28x = 5,191,859,977.07
5. Step 5: Solve for x
   x = 5,191,859,977.07/35,217.28
6. Step 6: Final answer
   x = 147,423.65