Finding the Third Proportional to 133,423 and 207,789.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,423 : 207,789.50 = 207,789.50 : x
2. Step 2: Convert to fraction form
   133,423/207,789.50 = 207,789.50/x
3. Step 3: Cross multiply
   133,423x = 207,789.50 × 207,789.50
4. Step 4: Simplify right side
   133,423x = 43,176,476,310.25
5. Step 5: Solve for x
   x = 43,176,476,310.25/133,423
6. Step 6: Final answer
   x = 323,605.95