Finding the Third Proportional to 779,924 and 1,687,784

Step by Step Solution

1. Step 1: Write the proportion equation
   779,924 : 1,687,784 = 1,687,784 : x
2. Step 2: Convert to fraction form
   779,924/1,687,784 = 1,687,784/x
3. Step 3: Cross multiply
   779,924x = 1,687,784 × 1,687,784
4. Step 4: Simplify right side
   779,924x = 2,848,614,830,656
5. Step 5: Solve for x
   x = 2,848,614,830,656/779,924
6. Step 6: Final answer
   x = 3,652,426.17