Finding the Third Proportional to 3,989,326 and 8,655,004

Step by Step Solution

1. Step 1: Write the proportion equation
   3,989,326 : 8,655,004 = 8,655,004 : x
2. Step 2: Convert to fraction form
   3,989,326/8,655,004 = 8,655,004/x
3. Step 3: Cross multiply
   3,989,326x = 8,655,004 × 8,655,004
4. Step 4: Simplify right side
   3,989,326x = 74,909,094,240,016
5. Step 5: Solve for x
   x = 74,909,094,240,016/3,989,326
6. Step 6: Final answer
   x = 18,777,381.00