Finding the Third Proportional to 133,123.50 and 289,575

Step by Step Solution

1. Step 1: Write the proportion equation
   133,123.50 : 289,575 = 289,575 : x
2. Step 2: Convert to fraction form
   133,123.50/289,575 = 289,575/x
3. Step 3: Cross multiply
   133,123.50x = 289,575 × 289,575
4. Step 4: Simplify right side
   133,123.50x = 83,853,680,625
5. Step 5: Solve for x
   x = 83,853,680,625/133,123.50
6. Step 6: Final answer
   x = 629,893.90