Finding the Third Proportional to 19,686,510 and 30,820,038

Step by Step Solution

1. Step 1: Write the proportion equation
   19,686,510 : 30,820,038 = 30,820,038 : x
2. Step 2: Convert to fraction form
   19,686,510/30,820,038 = 30,820,038/x
3. Step 3: Cross multiply
   19,686,510x = 30,820,038 × 30,820,038
4. Step 4: Simplify right side
   19,686,510x = 949,874,742,321,444
5. Step 5: Solve for x
   x = 949,874,742,321,444/19,686,510
6. Step 6: Final answer
   x = 48,250,032.25