Finding the Third Proportional to 7,620,156 and 10,862,640

Step by Step Solution

1. Step 1: Write the proportion equation
   7,620,156 : 10,862,640 = 10,862,640 : x
2. Step 2: Convert to fraction form
   7,620,156/10,862,640 = 10,862,640/x
3. Step 3: Cross multiply
   7,620,156x = 10,862,640 × 10,862,640
4. Step 4: Simplify right side
   7,620,156x = 117,996,947,769,600
5. Step 5: Solve for x
   x = 117,996,947,769,600/7,620,156
6. Step 6: Final answer
   x = 15,484,846.74