Finding the Third Proportional to 58,786.50 and 89,410.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,786.50 : 89,410.50 = 89,410.50 : x
2. Step 2: Convert to fraction form
   58,786.50/89,410.50 = 89,410.50/x
3. Step 3: Cross multiply
   58,786.50x = 89,410.50 × 89,410.50
4. Step 4: Simplify right side
   58,786.50x = 7,994,237,510.25
5. Step 5: Solve for x
   x = 7,994,237,510.25/58,786.50
6. Step 6: Final answer
   x = 135,987.64