Finding the Third Proportional to 30,268.50 and 70,338.75

Step by Step Solution

1. Step 1: Write the proportion equation
   30,268.50 : 70,338.75 = 70,338.75 : x
2. Step 2: Convert to fraction form
   30,268.50/70,338.75 = 70,338.75/x
3. Step 3: Cross multiply
   30,268.50x = 70,338.75 × 70,338.75
4. Step 4: Simplify right side
   30,268.50x = 4,947,539,751.56
5. Step 5: Solve for x
   x = 4,947,539,751.56/30,268.50
6. Step 6: Final answer
   x = 163,455.07