Finding the Third Proportional to 11,831,112 and 19,047,780

Step by Step Solution

1. Step 1: Write the proportion equation
   11,831,112 : 19,047,780 = 19,047,780 : x
2. Step 2: Convert to fraction form
   11,831,112/19,047,780 = 19,047,780/x
3. Step 3: Cross multiply
   11,831,112x = 19,047,780 × 19,047,780
4. Step 4: Simplify right side
   11,831,112x = 362,817,922,928,400
5. Step 5: Solve for x
   x = 362,817,922,928,400/11,831,112
6. Step 6: Final answer
   x = 30,666,426.19