Finding the Third Proportional to 173,312,855,908 and 377,393,857,388

Step by Step Solution

1. Step 1: Write the proportion equation
   173,312,855,908 : 377,393,857,388 = 377,393,857,388 : x
2. Step 2: Convert to fraction form
   173,312,855,908/377,393,857,388 = 377,393,857,388/x
3. Step 3: Cross multiply
   173,312,855,908x = 377,393,857,388 × 377,393,857,388
4. Step 4: Simplify right side
   173,312,855,908x = 142,426,123,594,194,086,789,120
5. Step 5: Solve for x
   x = 142,426,123,594,194,086,789,120/173,312,855,908
6. Step 6: Final answer
   x = 821,786,259,582.49