Finding the Third Proportional to 288,159 and 462,991.50

Step by Step Solution

1. Step 1: Write the proportion equation
   288,159 : 462,991.50 = 462,991.50 : x
2. Step 2: Convert to fraction form
   288,159/462,991.50 = 462,991.50/x
3. Step 3: Cross multiply
   288,159x = 462,991.50 × 462,991.50
4. Step 4: Simplify right side
   288,159x = 214,361,129,072.25
5. Step 5: Solve for x
   x = 214,361,129,072.25/288,159
6. Step 6: Final answer
   x = 743,898.78