Finding the Third Proportional to 455,895 and 989,064

Step by Step Solution

1. Step 1: Write the proportion equation
   455,895 : 989,064 = 989,064 : x
2. Step 2: Convert to fraction form
   455,895/989,064 = 989,064/x
3. Step 3: Cross multiply
   455,895x = 989,064 × 989,064
4. Step 4: Simplify right side
   455,895x = 978,247,596,096
5. Step 5: Solve for x
   x = 978,247,596,096/455,895
6. Step 6: Final answer
   x = 2,145,773.91