Finding the Third Proportional to 1,207,251 and 2,558,412

Step by Step Solution

1. Step 1: Write the proportion equation
   1,207,251 : 2,558,412 = 2,558,412 : x
2. Step 2: Convert to fraction form
   1,207,251/2,558,412 = 2,558,412/x
3. Step 3: Cross multiply
   1,207,251x = 2,558,412 × 2,558,412
4. Step 4: Simplify right side
   1,207,251x = 6,545,471,961,744
5. Step 5: Solve for x
   x = 6,545,471,961,744/1,207,251
6. Step 6: Final answer
   x = 5,421,798.75