Finding the Third Proportional to 16,688,040 and 34,655,040

Step by Step Solution

1. Step 1: Write the proportion equation
   16,688,040 : 34,655,040 = 34,655,040 : x
2. Step 2: Convert to fraction form
   16,688,040/34,655,040 = 34,655,040/x
3. Step 3: Cross multiply
   16,688,040x = 34,655,040 × 34,655,040
4. Step 4: Simplify right side
   16,688,040x = 1,200,971,797,401,600
5. Step 5: Solve for x
   x = 1,200,971,797,401,600/16,688,040
6. Step 6: Final answer
   x = 71,966,018.62