Finding the Third Proportional to 626,670 and 1,286,516

Step by Step Solution

1. Step 1: Write the proportion equation
   626,670 : 1,286,516 = 1,286,516 : x
2. Step 2: Convert to fraction form
   626,670/1,286,516 = 1,286,516/x
3. Step 3: Cross multiply
   626,670x = 1,286,516 × 1,286,516
4. Step 4: Simplify right side
   626,670x = 1,655,123,418,256
5. Step 5: Solve for x
   x = 1,655,123,418,256/626,670
6. Step 6: Final answer
   x = 2,641,140.34