Finding the Third Proportional to 265,842 and 404,230.50

Step by Step Solution

1. Step 1: Write the proportion equation
   265,842 : 404,230.50 = 404,230.50 : x
2. Step 2: Convert to fraction form
   265,842/404,230.50 = 404,230.50/x
3. Step 3: Cross multiply
   265,842x = 404,230.50 × 404,230.50
4. Step 4: Simplify right side
   265,842x = 163,402,297,130.25
5. Step 5: Solve for x
   x = 163,402,297,130.25/265,842
6. Step 6: Final answer
   x = 614,659.45