Finding the Third Proportional to 4,243,583 and 8,683,264

Step by Step Solution

1. Step 1: Write the proportion equation
   4,243,583 : 8,683,264 = 8,683,264 : x
2. Step 2: Convert to fraction form
   4,243,583/8,683,264 = 8,683,264/x
3. Step 3: Cross multiply
   4,243,583x = 8,683,264 × 8,683,264
4. Step 4: Simplify right side
   4,243,583x = 75,399,073,693,696
5. Step 5: Solve for x
   x = 75,399,073,693,696/4,243,583
6. Step 6: Final answer
   x = 17,767,785.78