Finding the Third Proportional to 989,338 and 1,478,184

Step by Step Solution

1. Step 1: Write the proportion equation
   989,338 : 1,478,184 = 1,478,184 : x
2. Step 2: Convert to fraction form
   989,338/1,478,184 = 1,478,184/x
3. Step 3: Cross multiply
   989,338x = 1,478,184 × 1,478,184
4. Step 4: Simplify right side
   989,338x = 2,185,027,937,856
5. Step 5: Solve for x
   x = 2,185,027,937,856/989,338
6. Step 6: Final answer
   x = 2,208,575.77