Finding the Third Proportional to 455,690 and 997,158

Step by Step Solution

1. Step 1: Write the proportion equation
   455,690 : 997,158 = 997,158 : x
2. Step 2: Convert to fraction form
   455,690/997,158 = 997,158/x
3. Step 3: Cross multiply
   455,690x = 997,158 × 997,158
4. Step 4: Simplify right side
   455,690x = 994,324,076,964
5. Step 5: Solve for x
   x = 994,324,076,964/455,690
6. Step 6: Final answer
   x = 2,182,018.65