Finding the Third Proportional to 277,555 and 654,989.50

Step by Step Solution

1. Step 1: Write the proportion equation
   277,555 : 654,989.50 = 654,989.50 : x
2. Step 2: Convert to fraction form
   277,555/654,989.50 = 654,989.50/x
3. Step 3: Cross multiply
   277,555x = 654,989.50 × 654,989.50
4. Step 4: Simplify right side
   277,555x = 429,011,245,110.25
5. Step 5: Solve for x
   x = 429,011,245,110.25/277,555
6. Step 6: Final answer
   x = 1,545,680.12