Finding the Third Proportional to 3,644,875 and 8,437,943

Step by Step Solution

1. Step 1: Write the proportion equation
   3,644,875 : 8,437,943 = 8,437,943 : x
2. Step 2: Convert to fraction form
   3,644,875/8,437,943 = 8,437,943/x
3. Step 3: Cross multiply
   3,644,875x = 8,437,943 × 8,437,943
4. Step 4: Simplify right side
   3,644,875x = 71,198,882,071,249
5. Step 5: Solve for x
   x = 71,198,882,071,249/3,644,875
6. Step 6: Final answer
   x = 19,533,970.87