Finding the Third Proportional to 99,658 and 145,650

Step by Step Solution

1. Step 1: Write the proportion equation
   99,658 : 145,650 = 145,650 : x
2. Step 2: Convert to fraction form
   99,658/145,650 = 145,650/x
3. Step 3: Cross multiply
   99,658x = 145,650 × 145,650
4. Step 4: Simplify right side
   99,658x = 21,213,922,500
5. Step 5: Solve for x
   x = 21,213,922,500/99,658
6. Step 6: Final answer
   x = 212,867.23