Finding the Third Proportional to 191,217,123 and 422,628,612.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191,217,123 : 422,628,612.50 = 422,628,612.50 : x
2. Step 2: Convert to fraction form
   191,217,123/422,628,612.50 = 422,628,612.50/x
3. Step 3: Cross multiply
   191,217,123x = 422,628,612.50 × 422,628,612.50
4. Step 4: Simplify right side
   191,217,123x = 178,614,944,103,675,168
5. Step 5: Solve for x
   x = 178,614,944,103,675,168/191,217,123
6. Step 6: Final answer
   x = 934,094,924.67