Finding the Third Proportional to 1,739,942 and 3,688,780

Step by Step Solution

1. Step 1: Write the proportion equation
   1,739,942 : 3,688,780 = 3,688,780 : x
2. Step 2: Convert to fraction form
   1,739,942/3,688,780 = 3,688,780/x
3. Step 3: Cross multiply
   1,739,942x = 3,688,780 × 3,688,780
4. Step 4: Simplify right side
   1,739,942x = 13,607,097,888,400
5. Step 5: Solve for x
   x = 13,607,097,888,400/1,739,942
6. Step 6: Final answer
   x = 7,820,431.88