Finding the Third Proportional to 689,616 and 1,059,732

Step by Step Solution

1. Step 1: Write the proportion equation
   689,616 : 1,059,732 = 1,059,732 : x
2. Step 2: Convert to fraction form
   689,616/1,059,732 = 1,059,732/x
3. Step 3: Cross multiply
   689,616x = 1,059,732 × 1,059,732
4. Step 4: Simplify right side
   689,616x = 1,123,031,911,824
5. Step 5: Solve for x
   x = 1,123,031,911,824/689,616
6. Step 6: Final answer
   x = 1,628,488.77