Finding the Third Proportional to 133,206 and 285,364.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,206 : 285,364.50 = 285,364.50 : x
2. Step 2: Convert to fraction form
   133,206/285,364.50 = 285,364.50/x
3. Step 3: Cross multiply
   133,206x = 285,364.50 × 285,364.50
4. Step 4: Simplify right side
   133,206x = 81,432,897,860.25
5. Step 5: Solve for x
   x = 81,432,897,860.25/133,206
6. Step 6: Final answer
   x = 611,330.55