Finding the Third Proportional to 1,257,358 and 2,572,819

Step by Step Solution

1. Step 1: Write the proportion equation
   1,257,358 : 2,572,819 = 2,572,819 : x
2. Step 2: Convert to fraction form
   1,257,358/2,572,819 = 2,572,819/x
3. Step 3: Cross multiply
   1,257,358x = 2,572,819 × 2,572,819
4. Step 4: Simplify right side
   1,257,358x = 6,619,397,606,761
5. Step 5: Solve for x
   x = 6,619,397,606,761/1,257,358
6. Step 6: Final answer
   x = 5,264,528.96