Finding the Third Proportional to 1,318,229 and 2,878,090

Step by Step Solution

1. Step 1: Write the proportion equation
   1,318,229 : 2,878,090 = 2,878,090 : x
2. Step 2: Convert to fraction form
   1,318,229/2,878,090 = 2,878,090/x
3. Step 3: Cross multiply
   1,318,229x = 2,878,090 × 2,878,090
4. Step 4: Simplify right side
   1,318,229x = 8,283,402,048,100
5. Step 5: Solve for x
   x = 8,283,402,048,100/1,318,229
6. Step 6: Final answer
   x = 6,283,735.26