Finding the Third Proportional to 121,035,295,878 and 264,870,988,380

Step by Step Solution

1. Step 1: Write the proportion equation
   121,035,295,878 : 264,870,988,380 = 264,870,988,380 : x
2. Step 2: Convert to fraction form
   121,035,295,878/264,870,988,380 = 264,870,988,380/x
3. Step 3: Cross multiply
   121,035,295,878x = 264,870,988,380 × 264,870,988,380
4. Step 4: Simplify right side
   121,035,295,878x = 70,156,640,485,398,095,593,472
5. Step 5: Solve for x
   x = 70,156,640,485,398,095,593,472/121,035,295,878
6. Step 6: Final answer
   x = 579,637,864,942.42