Finding the Third Proportional to 19,404,640 and 39,379,476

Step by Step Solution

1. Step 1: Write the proportion equation
   19,404,640 : 39,379,476 = 39,379,476 : x
2. Step 2: Convert to fraction form
   19,404,640/39,379,476 = 39,379,476/x
3. Step 3: Cross multiply
   19,404,640x = 39,379,476 × 39,379,476
4. Step 4: Simplify right side
   19,404,640x = 1,550,743,130,034,576
5. Step 5: Solve for x
   x = 1,550,743,130,034,576/19,404,640
6. Step 6: Final answer
   x = 79,916,098.93