Finding the Third Proportional to 919,441,338 and 1,427,608,128

Step by Step Solution

1. Step 1: Write the proportion equation
   919,441,338 : 1,427,608,128 = 1,427,608,128 : x
2. Step 2: Convert to fraction form
   919,441,338/1,427,608,128 = 1,427,608,128/x
3. Step 3: Cross multiply
   919,441,338x = 1,427,608,128 × 1,427,608,128
4. Step 4: Simplify right side
   919,441,338x = 2,038,064,967,131,664,384
5. Step 5: Solve for x
   x = 2,038,064,967,131,664,384/919,441,338
6. Step 6: Final answer
   x = 2,216,634,039.50