Finding the Third Proportional to 59,716 and 90,346

Step by Step Solution

1. Step 1: Write the proportion equation
   59,716 : 90,346 = 90,346 : x
2. Step 2: Convert to fraction form
   59,716/90,346 = 90,346/x
3. Step 3: Cross multiply
   59,716x = 90,346 × 90,346
4. Step 4: Simplify right side
   59,716x = 8,162,399,716
5. Step 5: Solve for x
   x = 8,162,399,716/59,716
6. Step 6: Final answer
   x = 136,686.98