Finding the Third Proportional to 677,397 and 997,381.50

Step by Step Solution

1. Step 1: Write the proportion equation
   677,397 : 997,381.50 = 997,381.50 : x
2. Step 2: Convert to fraction form
   677,397/997,381.50 = 997,381.50/x
3. Step 3: Cross multiply
   677,397x = 997,381.50 × 997,381.50
4. Step 4: Simplify right side
   677,397x = 994,769,856,542.25
5. Step 5: Solve for x
   x = 994,769,856,542.25/677,397
6. Step 6: Final answer
   x = 1,468,518.25