Finding the Third Proportional to 30,689.25 and 46,147.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,689.25 : 46,147.50 = 46,147.50 : x
2. Step 2: Convert to fraction form
   30,689.25/46,147.50 = 46,147.50/x
3. Step 3: Cross multiply
   30,689.25x = 46,147.50 × 46,147.50
4. Step 4: Simplify right side
   30,689.25x = 2,129,591,756.25
5. Step 5: Solve for x
   x = 2,129,591,756.25/30,689.25
6. Step 6: Final answer
   x = 69,392.11