Finding the Third Proportional to 931,768 and 1,405,380

Step by Step Solution

1. Step 1: Write the proportion equation
   931,768 : 1,405,380 = 1,405,380 : x
2. Step 2: Convert to fraction form
   931,768/1,405,380 = 1,405,380/x
3. Step 3: Cross multiply
   931,768x = 1,405,380 × 1,405,380
4. Step 4: Simplify right side
   931,768x = 1,975,092,944,400
5. Step 5: Solve for x
   x = 1,975,092,944,400/931,768
6. Step 6: Final answer
   x = 2,119,726.10