Finding the Third Proportional to 3,656,644 and 7,875,211

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656,644 : 7,875,211 = 7,875,211 : x
2. Step 2: Convert to fraction form
   3,656,644/7,875,211 = 7,875,211/x
3. Step 3: Cross multiply
   3,656,644x = 7,875,211 × 7,875,211
4. Step 4: Simplify right side
   3,656,644x = 62,018,948,294,521
5. Step 5: Solve for x
   x = 62,018,948,294,521/3,656,644
6. Step 6: Final answer
   x = 16,960,619.71