Finding the Third Proportional to 59,486.25 and 87,584.63

Step by Step Solution

1. Step 1: Write the proportion equation
   59,486.25 : 87,584.63 = 87,584.63 : x
2. Step 2: Convert to fraction form
   59,486.25/87,584.63 = 87,584.63/x
3. Step 3: Cross multiply
   59,486.25x = 87,584.63 × 87,584.63
4. Step 4: Simplify right side
   59,486.25x = 7,671,066,536.39
5. Step 5: Solve for x
   x = 7,671,066,536.39/59,486.25
6. Step 6: Final answer
   x = 128,955.29