Finding the Third Proportional to 123,402,155,238 and 173,777,427,434

Step by Step Solution

1. Step 1: Write the proportion equation
   123,402,155,238 : 173,777,427,434 = 173,777,427,434 : x
2. Step 2: Convert to fraction form
   123,402,155,238/173,777,427,434 = 173,777,427,434/x
3. Step 3: Cross multiply
   123,402,155,238x = 173,777,427,434 × 173,777,427,434
4. Step 4: Simplify right side
   123,402,155,238x = 30,198,594,285,579,133,779,968
5. Step 5: Solve for x
   x = 30,198,594,285,579,133,779,968/123,402,155,238
6. Step 6: Final answer
   x = 244,716,911,364.61