Finding the Third Proportional to 19,804,989 and 42,538,441

Step by Step Solution

1. Step 1: Write the proportion equation
   19,804,989 : 42,538,441 = 42,538,441 : x
2. Step 2: Convert to fraction form
   19,804,989/42,538,441 = 42,538,441/x
3. Step 3: Cross multiply
   19,804,989x = 42,538,441 × 42,538,441
4. Step 4: Simplify right side
   19,804,989x = 1,809,518,962,710,481
5. Step 5: Solve for x
   x = 1,809,518,962,710,481/19,804,989
6. Step 6: Final answer
   x = 91,366,824.93