Finding the Third Proportional to 58,857.75 and 90,055.13

Step by Step Solution

1. Step 1: Write the proportion equation
   58,857.75 : 90,055.13 = 90,055.13 : x
2. Step 2: Convert to fraction form
   58,857.75/90,055.13 = 90,055.13/x
3. Step 3: Cross multiply
   58,857.75x = 90,055.13 × 90,055.13
4. Step 4: Simplify right side
   58,857.75x = 8,109,925,538.77
5. Step 5: Solve for x
   x = 8,109,925,538.77/58,857.75
6. Step 6: Final answer
   x = 137,788.58