Finding the Third Proportional to 91,209 and 145,705

Step by Step Solution

1. Step 1: Write the proportion equation
   91,209 : 145,705 = 145,705 : x
2. Step 2: Convert to fraction form
   91,209/145,705 = 145,705/x
3. Step 3: Cross multiply
   91,209x = 145,705 × 145,705
4. Step 4: Simplify right side
   91,209x = 21,229,947,025
5. Step 5: Solve for x
   x = 21,229,947,025/91,209
6. Step 6: Final answer
   x = 232,761.54