Finding the Third Proportional to 45,987.75 and 78,058.69

Step by Step Solution

1. Step 1: Write the proportion equation
   45,987.75 : 78,058.69 = 78,058.69 : x
2. Step 2: Convert to fraction form
   45,987.75/78,058.69 = 78,058.69/x
3. Step 3: Cross multiply
   45,987.75x = 78,058.69 × 78,058.69
4. Step 4: Simplify right side
   45,987.75x = 6,093,158,694.22
5. Step 5: Solve for x
   x = 6,093,158,694.22/45,987.75
6. Step 6: Final answer
   x = 132,495.26