Finding the Third Proportional to 64,761 and 86,078.25

Step by Step Solution

1. Step 1: Write the proportion equation
   64,761 : 86,078.25 = 86,078.25 : x
2. Step 2: Convert to fraction form
   64,761/86,078.25 = 86,078.25/x
3. Step 3: Cross multiply
   64,761x = 86,078.25 × 86,078.25
4. Step 4: Simplify right side
   64,761x = 7,409,465,123.06
5. Step 5: Solve for x
   x = 7,409,465,123.06/64,761
6. Step 6: Final answer
   x = 114,412.46