Finding the Third Proportional to 666,372 and 1,059,834

Step by Step Solution

1. Step 1: Write the proportion equation
   666,372 : 1,059,834 = 1,059,834 : x
2. Step 2: Convert to fraction form
   666,372/1,059,834 = 1,059,834/x
3. Step 3: Cross multiply
   666,372x = 1,059,834 × 1,059,834
4. Step 4: Simplify right side
   666,372x = 1,123,248,107,556
5. Step 5: Solve for x
   x = 1,123,248,107,556/666,372
6. Step 6: Final answer
   x = 1,685,617.20