Finding the Third Proportional to 3,689,808 and 8,009,440

Step by Step Solution

1. Step 1: Write the proportion equation
   3,689,808 : 8,009,440 = 8,009,440 : x
2. Step 2: Convert to fraction form
   3,689,808/8,009,440 = 8,009,440/x
3. Step 3: Cross multiply
   3,689,808x = 8,009,440 × 8,009,440
4. Step 4: Simplify right side
   3,689,808x = 64,151,129,113,600
5. Step 5: Solve for x
   x = 64,151,129,113,600/3,689,808
6. Step 6: Final answer
   x = 17,386,034.48