Finding the Third Proportional to 59,286 and 90,148

Step by Step Solution

1. Step 1: Write the proportion equation
   59,286 : 90,148 = 90,148 : x
2. Step 2: Convert to fraction form
   59,286/90,148 = 90,148/x
3. Step 3: Cross multiply
   59,286x = 90,148 × 90,148
4. Step 4: Simplify right side
   59,286x = 8,126,661,904
5. Step 5: Solve for x
   x = 8,126,661,904/59,286
6. Step 6: Final answer
   x = 137,075.56