Finding the Third Proportional to 80,615,636 and 164,614,965.50

Step by Step Solution

1. Step 1: Write the proportion equation
   80,615,636 : 164,614,965.50 = 164,614,965.50 : x
2. Step 2: Convert to fraction form
   80,615,636/164,614,965.50 = 164,614,965.50/x
3. Step 3: Cross multiply
   80,615,636x = 164,614,965.50 × 164,614,965.50
4. Step 4: Simplify right side
   80,615,636x = 27,098,086,866,566,192
5. Step 5: Solve for x
   x = 27,098,086,866,566,192/80,615,636
6. Step 6: Final answer
   x = 336,139,342.33