Finding the Third Proportional to 277,978.50 and 606,930

Step by Step Solution

1. Step 1: Write the proportion equation
   277,978.50 : 606,930 = 606,930 : x
2. Step 2: Convert to fraction form
   277,978.50/606,930 = 606,930/x
3. Step 3: Cross multiply
   277,978.50x = 606,930 × 606,930
4. Step 4: Simplify right side
   277,978.50x = 368,364,024,900
5. Step 5: Solve for x
   x = 368,364,024,900/277,978.50
6. Step 6: Final answer
   x = 1,325,152.93