Finding the Third Proportional to 803,384 and 1,142,139

Step by Step Solution

1. Step 1: Write the proportion equation
   803,384 : 1,142,139 = 1,142,139 : x
2. Step 2: Convert to fraction form
   803,384/1,142,139 = 1,142,139/x
3. Step 3: Cross multiply
   803,384x = 1,142,139 × 1,142,139
4. Step 4: Simplify right side
   803,384x = 1,304,481,495,321
5. Step 5: Solve for x
   x = 1,304,481,495,321/803,384
6. Step 6: Final answer
   x = 1,623,733.48