Finding the Third Proportional to 123,402,155,242 and 173,777,427,440

Step by Step Solution

1. Step 1: Write the proportion equation
   123,402,155,242 : 173,777,427,440 = 173,777,427,440 : x
2. Step 2: Convert to fraction form
   123,402,155,242/173,777,427,440 = 173,777,427,440/x
3. Step 3: Cross multiply
   123,402,155,242x = 173,777,427,440 × 173,777,427,440
4. Step 4: Simplify right side
   123,402,155,242x = 30,198,594,287,664,466,231,296
5. Step 5: Solve for x
   x = 30,198,594,287,664,466,231,296/123,402,155,242
6. Step 6: Final answer
   x = 244,716,911,373.57