Finding the Third Proportional to 59,195.81 and 90,555.47

Step by Step Solution

1. Step 1: Write the proportion equation
   59,195.81 : 90,555.47 = 90,555.47 : x
2. Step 2: Convert to fraction form
   59,195.81/90,555.47 = 90,555.47/x
3. Step 3: Cross multiply
   59,195.81x = 90,555.47 × 90,555.47
4. Step 4: Simplify right side
   59,195.81x = 8,200,292,920.53
5. Step 5: Solve for x
   x = 8,200,292,920.53/59,195.81
6. Step 6: Final answer
   x = 138,528.26