Finding the Third Proportional to 31,303.69 and 69,605.44

Step by Step Solution

1. Step 1: Write the proportion equation
   31,303.69 : 69,605.44 = 69,605.44 : x
2. Step 2: Convert to fraction form
   31,303.69/69,605.44 = 69,605.44/x
3. Step 3: Cross multiply
   31,303.69x = 69,605.44 × 69,605.44
4. Step 4: Simplify right side
   31,303.69x = 4,844,916,929.57
5. Step 5: Solve for x
   x = 4,844,916,929.57/31,303.69
6. Step 6: Final answer
   x = 154,771.44