Finding the Third Proportional to 30,280.50 and 70,368.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,280.50 : 70,368.75 = 70,368.75 : x
2. Step 2: Convert to fraction form
   30,280.50/70,368.75 = 70,368.75/x
3. Step 3: Cross multiply
   30,280.50x = 70,368.75 × 70,368.75
4. Step 4: Simplify right side
   30,280.50x = 4,951,760,976.56
5. Step 5: Solve for x
   x = 4,951,760,976.56/30,280.50
6. Step 6: Final answer
   x = 163,529.70