Finding the Third Proportional to 86,189,276 and 186,052,648

Step by Step Solution

1. Step 1: Write the proportion equation
   86,189,276 : 186,052,648 = 186,052,648 : x
2. Step 2: Convert to fraction form
   86,189,276/186,052,648 = 186,052,648/x
3. Step 3: Cross multiply
   86,189,276x = 186,052,648 × 186,052,648
4. Step 4: Simplify right side
   86,189,276x = 34,615,587,827,811,904
5. Step 5: Solve for x
   x = 34,615,587,827,811,904/86,189,276
6. Step 6: Final answer
   x = 401,622,909.88