Finding the Third Proportional to 90,984 and 140,364

Step by Step Solution

1. Step 1: Write the proportion equation
   90,984 : 140,364 = 140,364 : x
2. Step 2: Convert to fraction form
   90,984/140,364 = 140,364/x
3. Step 3: Cross multiply
   90,984x = 140,364 × 140,364
4. Step 4: Simplify right side
   90,984x = 19,702,052,496
5. Step 5: Solve for x
   x = 19,702,052,496/90,984
6. Step 6: Final answer
   x = 216,544.15