Finding the Third Proportional to 989,762 and 2,156,164

Step by Step Solution

1. Step 1: Write the proportion equation
   989,762 : 2,156,164 = 2,156,164 : x
2. Step 2: Convert to fraction form
   989,762/2,156,164 = 2,156,164/x
3. Step 3: Cross multiply
   989,762x = 2,156,164 × 2,156,164
4. Step 4: Simplify right side
   989,762x = 4,649,043,194,896
5. Step 5: Solve for x
   x = 4,649,043,194,896/989,762
6. Step 6: Final answer
   x = 4,697,132.44