Finding the Third Proportional to 31,898.81 and 69,536.81

Step by Step Solution

1. Step 1: Write the proportion equation
   31,898.81 : 69,536.81 = 69,536.81 : x
2. Step 2: Convert to fraction form
   31,898.81/69,536.81 = 69,536.81/x
3. Step 3: Cross multiply
   31,898.81x = 69,536.81 × 69,536.81
4. Step 4: Simplify right side
   31,898.81x = 4,835,368,292.66
5. Step 5: Solve for x
   x = 4,835,368,292.66/31,898.81
6. Step 6: Final answer
   x = 151,584.59