Finding the Third Proportional to 19,404,648 and 39,379,506

Step by Step Solution

1. Step 1: Write the proportion equation
   19,404,648 : 39,379,506 = 39,379,506 : x
2. Step 2: Convert to fraction form
   19,404,648/39,379,506 = 39,379,506/x
3. Step 3: Cross multiply
   19,404,648x = 39,379,506 × 39,379,506
4. Step 4: Simplify right side
   19,404,648x = 1,550,745,492,804,036
5. Step 5: Solve for x
   x = 1,550,745,492,804,036/19,404,648
6. Step 6: Final answer
   x = 79,916,187.75