Finding the Third Proportional to 689,692 and 1,076,442

Step by Step Solution

1. Step 1: Write the proportion equation
   689,692 : 1,076,442 = 1,076,442 : x
2. Step 2: Convert to fraction form
   689,692/1,076,442 = 1,076,442/x
3. Step 3: Cross multiply
   689,692x = 1,076,442 × 1,076,442
4. Step 4: Simplify right side
   689,692x = 1,158,727,379,364
5. Step 5: Solve for x
   x = 1,158,727,379,364/689,692
6. Step 6: Final answer
   x = 1,680,064.98