Finding the Third Proportional to 58,487.06 and 87,340.78

Step by Step Solution

1. Step 1: Write the proportion equation
   58,487.06 : 87,340.78 = 87,340.78 : x
2. Step 2: Convert to fraction form
   58,487.06/87,340.78 = 87,340.78/x
3. Step 3: Cross multiply
   58,487.06x = 87,340.78 × 87,340.78
4. Step 4: Simplify right side
   58,487.06x = 7,628,412,069.36
5. Step 5: Solve for x
   x = 7,628,412,069.36/58,487.06
6. Step 6: Final answer
   x = 130,429.05