Finding the Third Proportional to 78,637,329,724 and 173,303,451,548

Step by Step Solution

1. Step 1: Write the proportion equation
   78,637,329,724 : 173,303,451,548 = 173,303,451,548 : x
2. Step 2: Convert to fraction form
   78,637,329,724/173,303,451,548 = 173,303,451,548/x
3. Step 3: Cross multiply
   78,637,329,724x = 173,303,451,548 × 173,303,451,548
4. Step 4: Simplify right side
   78,637,329,724x = 30,034,086,318,449,981,652,992
5. Step 5: Solve for x
   x = 30,034,086,318,449,981,652,992/78,637,329,724
6. Step 6: Final answer
   x = 381,931,665,582.53