Finding the Third Proportional to 61,175.81 and 86,150.25

Step by Step Solution

1. Step 1: Write the proportion equation
   61,175.81 : 86,150.25 = 86,150.25 : x
2. Step 2: Convert to fraction form
   61,175.81/86,150.25 = 86,150.25/x
3. Step 3: Cross multiply
   61,175.81x = 86,150.25 × 86,150.25
4. Step 4: Simplify right side
   61,175.81x = 7,421,865,575.06
5. Step 5: Solve for x
   x = 7,421,865,575.06/61,175.81
6. Step 6: Final answer
   x = 121,320.26