Finding the Third Proportional to 64,687.36 and 86,301.07

Step by Step Solution

1. Step 1: Write the proportion equation
   64,687.36 : 86,301.07 = 86,301.07 : x
2. Step 2: Convert to fraction form
   64,687.36/86,301.07 = 86,301.07/x
3. Step 3: Cross multiply
   64,687.36x = 86,301.07 × 86,301.07
4. Step 4: Simplify right side
   64,687.36x = 7,447,874,737.08
5. Step 5: Solve for x
   x = 7,447,874,737.08/64,687.36
6. Step 6: Final answer
   x = 115,136.48