Finding the Third Proportional to 86,819,066 and 188,733,940

Step by Step Solution

1. Step 1: Write the proportion equation
   86,819,066 : 188,733,940 = 188,733,940 : x
2. Step 2: Convert to fraction form
   86,819,066/188,733,940 = 188,733,940/x
3. Step 3: Cross multiply
   86,819,066x = 188,733,940 × 188,733,940
4. Step 4: Simplify right side
   86,819,066x = 35,620,500,107,923,600
5. Step 5: Solve for x
   x = 35,620,500,107,923,600/86,819,066
6. Step 6: Final answer
   x = 410,284,304.46