Finding the Third Proportional to 59,557 and 90,429

Step by Step Solution

1. Step 1: Write the proportion equation
   59,557 : 90,429 = 90,429 : x
2. Step 2: Convert to fraction form
   59,557/90,429 = 90,429/x
3. Step 3: Cross multiply
   59,557x = 90,429 × 90,429
4. Step 4: Simplify right side
   59,557x = 8,177,404,041
5. Step 5: Solve for x
   x = 8,177,404,041/59,557
6. Step 6: Final answer
   x = 137,303.83