Finding the Third Proportional to 133,359 and 289,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   133,359 : 289,612.50 = 289,612.50 : x
2. Step 2: Convert to fraction form
   133,359/289,612.50 = 289,612.50/x
3. Step 3: Cross multiply
   133,359x = 289,612.50 × 289,612.50
4. Step 4: Simplify right side
   133,359x = 83,875,400,156.25
5. Step 5: Solve for x
   x = 83,875,400,156.25/133,359
6. Step 6: Final answer
   x = 628,944.43