Finding the Third Proportional to 833,139 and 1,261,393

Step by Step Solution

1. Step 1: Write the proportion equation
   833,139 : 1,261,393 = 1,261,393 : x
2. Step 2: Convert to fraction form
   833,139/1,261,393 = 1,261,393/x
3. Step 3: Cross multiply
   833,139x = 1,261,393 × 1,261,393
4. Step 4: Simplify right side
   833,139x = 1,591,112,300,449
5. Step 5: Solve for x
   x = 1,591,112,300,449/833,139
6. Step 6: Final answer
   x = 1,909,780.12