Finding the Third Proportional to 3,656,740 and 7,875,440

Step by Step Solution

1. Step 1: Write the proportion equation
   3,656,740 : 7,875,440 = 7,875,440 : x
2. Step 2: Convert to fraction form
   3,656,740/7,875,440 = 7,875,440/x
3. Step 3: Cross multiply
   3,656,740x = 7,875,440 × 7,875,440
4. Step 4: Simplify right side
   3,656,740x = 62,022,555,193,600
5. Step 5: Solve for x
   x = 62,022,555,193,600/3,656,740
6. Step 6: Final answer
   x = 16,961,160.81