Finding the Third Proportional to 86,131,701 and 189,003,658.50

Step by Step Solution

1. Step 1: Write the proportion equation
   86,131,701 : 189,003,658.50 = 189,003,658.50 : x
2. Step 2: Convert to fraction form
   86,131,701/189,003,658.50 = 189,003,658.50/x
3. Step 3: Cross multiply
   86,131,701x = 189,003,658.50 × 189,003,658.50
4. Step 4: Simplify right side
   86,131,701x = 35,722,382,926,384,624
5. Step 5: Solve for x
   x = 35,722,382,926,384,624/86,131,701
6. Step 6: Final answer
   x = 414,741,407.77