Finding the Third Proportional to 3,479,942 and 7,666,528

Step by Step Solution

1. Step 1: Write the proportion equation
   3,479,942 : 7,666,528 = 7,666,528 : x
2. Step 2: Convert to fraction form
   3,479,942/7,666,528 = 7,666,528/x
3. Step 3: Cross multiply
   3,479,942x = 7,666,528 × 7,666,528
4. Step 4: Simplify right side
   3,479,942x = 58,775,651,574,784
5. Step 5: Solve for x
   x = 58,775,651,574,784/3,479,942
6. Step 6: Final answer
   x = 16,889,836.55