Finding the Third Proportional to 136,191 and 268,894.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,191 : 268,894.50 = 268,894.50 : x
2. Step 2: Convert to fraction form
   136,191/268,894.50 = 268,894.50/x
3. Step 3: Cross multiply
   136,191x = 268,894.50 × 268,894.50
4. Step 4: Simplify right side
   136,191x = 72,304,252,130.25
5. Step 5: Solve for x
   x = 72,304,252,130.25/136,191
6. Step 6: Final answer
   x = 530,903.31