Finding the Third Proportional to 59,188 and 91,212

Step by Step Solution

1. Step 1: Write the proportion equation
   59,188 : 91,212 = 91,212 : x
2. Step 2: Convert to fraction form
   59,188/91,212 = 91,212/x
3. Step 3: Cross multiply
   59,188x = 91,212 × 91,212
4. Step 4: Simplify right side
   59,188x = 8,319,628,944
5. Step 5: Solve for x
   x = 8,319,628,944/59,188
6. Step 6: Final answer
   x = 140,562.77