Finding the Third Proportional to 31,434.33 and 68,396.91

Step by Step Solution

1. Step 1: Write the proportion equation
   31,434.33 : 68,396.91 = 68,396.91 : x
2. Step 2: Convert to fraction form
   31,434.33/68,396.91 = 68,396.91/x
3. Step 3: Cross multiply
   31,434.33x = 68,396.91 × 68,396.91
4. Step 4: Simplify right side
   31,434.33x = 4,678,136,784.57
5. Step 5: Solve for x
   x = 4,678,136,784.57/31,434.33
6. Step 6: Final answer
   x = 148,822.55