Finding the Third Proportional to 787,056 and 1,688,784

Step by Step Solution

1. Step 1: Write the proportion equation
   787,056 : 1,688,784 = 1,688,784 : x
2. Step 2: Convert to fraction form
   787,056/1,688,784 = 1,688,784/x
3. Step 3: Cross multiply
   787,056x = 1,688,784 × 1,688,784
4. Step 4: Simplify right side
   787,056x = 2,851,991,398,656
5. Step 5: Solve for x
   x = 2,851,991,398,656/787,056
6. Step 6: Final answer
   x = 3,623,619.41