Finding the Third Proportional to 427,990 and 1,012,148

Step by Step Solution

1. Step 1: Write the proportion equation
   427,990 : 1,012,148 = 1,012,148 : x
2. Step 2: Convert to fraction form
   427,990/1,012,148 = 1,012,148/x
3. Step 3: Cross multiply
   427,990x = 1,012,148 × 1,012,148
4. Step 4: Simplify right side
   427,990x = 1,024,443,573,904
5. Step 5: Solve for x
   x = 1,024,443,573,904/427,990
6. Step 6: Final answer
   x = 2,393,615.68