Finding the Third Proportional to 1,503,616 and 2,172,465

Step by Step Solution

1. Step 1: Write the proportion equation
   1,503,616 : 2,172,465 = 2,172,465 : x
2. Step 2: Convert to fraction form
   1,503,616/2,172,465 = 2,172,465/x
3. Step 3: Cross multiply
   1,503,616x = 2,172,465 × 2,172,465
4. Step 4: Simplify right side
   1,503,616x = 4,719,604,176,225
5. Step 5: Solve for x
   x = 4,719,604,176,225/1,503,616
6. Step 6: Final answer
   x = 3,138,836.10