Finding the Third Proportional to 89,507,364 and 192,787,357.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,507,364 : 192,787,357.50 = 192,787,357.50 : x
2. Step 2: Convert to fraction form
   89,507,364/192,787,357.50 = 192,787,357.50/x
3. Step 3: Cross multiply
   89,507,364x = 192,787,357.50 × 192,787,357.50
4. Step 4: Simplify right side
   89,507,364x = 37,166,965,211,832,808
5. Step 5: Solve for x
   x = 37,166,965,211,832,808/89,507,364
6. Step 6: Final answer
   x = 415,239,188.72