Finding the Third Proportional to 17,787,570 and 38,786,916

Step by Step Solution

1. Step 1: Write the proportion equation
   17,787,570 : 38,786,916 = 38,786,916 : x
2. Step 2: Convert to fraction form
   17,787,570/38,786,916 = 38,786,916/x
3. Step 3: Cross multiply
   17,787,570x = 38,786,916 × 38,786,916
4. Step 4: Simplify right side
   17,787,570x = 1,504,424,852,791,056
5. Step 5: Solve for x
   x = 1,504,424,852,791,056/17,787,570
6. Step 6: Final answer
   x = 84,577,311.73