Finding the Third Proportional to 3,645,943 and 7,857,118

Step by Step Solution

1. Step 1: Write the proportion equation
   3,645,943 : 7,857,118 = 7,857,118 : x
2. Step 2: Convert to fraction form
   3,645,943/7,857,118 = 7,857,118/x
3. Step 3: Cross multiply
   3,645,943x = 7,857,118 × 7,857,118
4. Step 4: Simplify right side
   3,645,943x = 61,734,303,265,924
5. Step 5: Solve for x
   x = 61,734,303,265,924/3,645,943
6. Step 6: Final answer
   x = 16,932,328.14