Finding the Third Proportional to 866,812 and 1,291,038

Step by Step Solution

1. Step 1: Write the proportion equation
   866,812 : 1,291,038 = 1,291,038 : x
2. Step 2: Convert to fraction form
   866,812/1,291,038 = 1,291,038/x
3. Step 3: Cross multiply
   866,812x = 1,291,038 × 1,291,038
4. Step 4: Simplify right side
   866,812x = 1,666,779,117,444
5. Step 5: Solve for x
   x = 1,666,779,117,444/866,812
6. Step 6: Final answer
   x = 1,922,884.22