Finding the Third Proportional to 989,534 and 2,118,988

Step by Step Solution

1. Step 1: Write the proportion equation
   989,534 : 2,118,988 = 2,118,988 : x
2. Step 2: Convert to fraction form
   989,534/2,118,988 = 2,118,988/x
3. Step 3: Cross multiply
   989,534x = 2,118,988 × 2,118,988
4. Step 4: Simplify right side
   989,534x = 4,490,110,144,144
5. Step 5: Solve for x
   x = 4,490,110,144,144/989,534
6. Step 6: Final answer
   x = 4,537,600.67