Finding the Third Proportional to 87,668,694 and 139,621,182

Step by Step Solution

1. Step 1: Write the proportion equation
   87,668,694 : 139,621,182 = 139,621,182 : x
2. Step 2: Convert to fraction form
   87,668,694/139,621,182 = 139,621,182/x
3. Step 3: Cross multiply
   87,668,694x = 139,621,182 × 139,621,182
4. Step 4: Simplify right side
   87,668,694x = 19,494,074,463,077,124
5. Step 5: Solve for x
   x = 19,494,074,463,077,124/87,668,694
6. Step 6: Final answer
   x = 222,360,726.20