Finding the Third Proportional to 288,308.25 and 673,614

Step by Step Solution

1. Step 1: Write the proportion equation
   288,308.25 : 673,614 = 673,614 : x
2. Step 2: Convert to fraction form
   288,308.25/673,614 = 673,614/x
3. Step 3: Cross multiply
   288,308.25x = 673,614 × 673,614
4. Step 4: Simplify right side
   288,308.25x = 453,755,820,996
5. Step 5: Solve for x
   x = 453,755,820,996/288,308.25
6. Step 6: Final answer
   x = 1,573,856.53