Finding the Third Proportional to 989,088 and 2,118,144

Step by Step Solution

1. Step 1: Write the proportion equation
   989,088 : 2,118,144 = 2,118,144 : x
2. Step 2: Convert to fraction form
   989,088/2,118,144 = 2,118,144/x
3. Step 3: Cross multiply
   989,088x = 2,118,144 × 2,118,144
4. Step 4: Simplify right side
   989,088x = 4,486,534,004,736
5. Step 5: Solve for x
   x = 4,486,534,004,736/989,088
6. Step 6: Final answer
   x = 4,536,031.18