Finding the Third Proportional to 1,712,916 and 3,688,920

Step by Step Solution

1. Step 1: Write the proportion equation
   1,712,916 : 3,688,920 = 3,688,920 : x
2. Step 2: Convert to fraction form
   1,712,916/3,688,920 = 3,688,920/x
3. Step 3: Cross multiply
   1,712,916x = 3,688,920 × 3,688,920
4. Step 4: Simplify right side
   1,712,916x = 13,608,130,766,400
5. Step 5: Solve for x
   x = 13,608,130,766,400/1,712,916
6. Step 6: Final answer
   x = 7,944,423.88