Finding the Third Proportional to 688,656 and 1,138,032

Step by Step Solution

1. Step 1: Write the proportion equation
   688,656 : 1,138,032 = 1,138,032 : x
2. Step 2: Convert to fraction form
   688,656/1,138,032 = 1,138,032/x
3. Step 3: Cross multiply
   688,656x = 1,138,032 × 1,138,032
4. Step 4: Simplify right side
   688,656x = 1,295,116,833,024
5. Step 5: Solve for x
   x = 1,295,116,833,024/688,656
6. Step 6: Final answer
   x = 1,880,644.09