Finding the Third Proportional to 1,775,620 and 3,913,172

Step by Step Solution

1. Step 1: Write the proportion equation
   1,775,620 : 3,913,172 = 3,913,172 : x
2. Step 2: Convert to fraction form
   1,775,620/3,913,172 = 3,913,172/x
3. Step 3: Cross multiply
   1,775,620x = 3,913,172 × 3,913,172
4. Step 4: Simplify right side
   1,775,620x = 15,312,915,101,584
5. Step 5: Solve for x
   x = 15,312,915,101,584/1,775,620
6. Step 6: Final answer
   x = 8,623,982.10