Finding the Third Proportional to 1,988,105,776 and 3,111,955,656

Step by Step Solution

1. Step 1: Write the proportion equation
   1,988,105,776 : 3,111,955,656 = 3,111,955,656 : x
2. Step 2: Convert to fraction form
   1,988,105,776/3,111,955,656 = 3,111,955,656/x
3. Step 3: Cross multiply
   1,988,105,776x = 3,111,955,656 × 3,111,955,656
4. Step 4: Simplify right side
   1,988,105,776x = 9,684,268,004,910,391,296
5. Step 5: Solve for x
   x = 9,684,268,004,910,391,296/1,988,105,776
6. Step 6: Final answer
   x = 4,871,102,997.55