Finding the Third Proportional to 1,216,602 and 2,510,316

Step by Step Solution

1. Step 1: Write the proportion equation
   1,216,602 : 2,510,316 = 2,510,316 : x
2. Step 2: Convert to fraction form
   1,216,602/2,510,316 = 2,510,316/x
3. Step 3: Cross multiply
   1,216,602x = 2,510,316 × 2,510,316
4. Step 4: Simplify right side
   1,216,602x = 6,301,686,419,856
5. Step 5: Solve for x
   x = 6,301,686,419,856/1,216,602
6. Step 6: Final answer
   x = 5,179,743.60