Finding the Third Proportional to 133,984.50 and 278,994

Step by Step Solution

1. Step 1: Write the proportion equation
   133,984.50 : 278,994 = 278,994 : x
2. Step 2: Convert to fraction form
   133,984.50/278,994 = 278,994/x
3. Step 3: Cross multiply
   133,984.50x = 278,994 × 278,994
4. Step 4: Simplify right side
   133,984.50x = 77,837,652,036
5. Step 5: Solve for x
   x = 77,837,652,036/133,984.50
6. Step 6: Final answer
   x = 580,945.20