Finding the Third Proportional to 288,495 and 447,865.88

Step by Step Solution

1. Step 1: Write the proportion equation
   288,495 : 447,865.88 = 447,865.88 : x
2. Step 2: Convert to fraction form
   288,495/447,865.88 = 447,865.88/x
3. Step 3: Cross multiply
   288,495x = 447,865.88 × 447,865.88
4. Step 4: Simplify right side
   288,495x = 200,583,841,989.52
5. Step 5: Solve for x
   x = 200,583,841,989.52/288,495
6. Step 6: Final answer
   x = 695,276.67