Finding the Third Proportional to 1,252,288 and 2,666,516

Step by Step Solution

1. Step 1: Write the proportion equation
   1,252,288 : 2,666,516 = 2,666,516 : x
2. Step 2: Convert to fraction form
   1,252,288/2,666,516 = 2,666,516/x
3. Step 3: Cross multiply
   1,252,288x = 2,666,516 × 2,666,516
4. Step 4: Simplify right side
   1,252,288x = 7,110,307,578,256
5. Step 5: Solve for x
   x = 7,110,307,578,256/1,252,288
6. Step 6: Final answer
   x = 5,677,853.32