Finding the Third Proportional to 3,655,174 and 7,920,520

Step by Step Solution

1. Step 1: Write the proportion equation
   3,655,174 : 7,920,520 = 7,920,520 : x
2. Step 2: Convert to fraction form
   3,655,174/7,920,520 = 7,920,520/x
3. Step 3: Cross multiply
   3,655,174x = 7,920,520 × 7,920,520
4. Step 4: Simplify right side
   3,655,174x = 62,734,637,070,400
5. Step 5: Solve for x
   x = 62,734,637,070,400/3,655,174
6. Step 6: Final answer
   x = 17,163,242.32