Finding the Third Proportional to 838,870 and 1,334,313

Step by Step Solution

1. Step 1: Write the proportion equation
   838,870 : 1,334,313 = 1,334,313 : x
2. Step 2: Convert to fraction form
   838,870/1,334,313 = 1,334,313/x
3. Step 3: Cross multiply
   838,870x = 1,334,313 × 1,334,313
4. Step 4: Simplify right side
   838,870x = 1,780,391,181,969
5. Step 5: Solve for x
   x = 1,780,391,181,969/838,870
6. Step 6: Final answer
   x = 2,122,368.40