Finding the Third Proportional to 812,713 and 1,195,503

Step by Step Solution

1. Step 1: Write the proportion equation
   812,713 : 1,195,503 = 1,195,503 : x
2. Step 2: Convert to fraction form
   812,713/1,195,503 = 1,195,503/x
3. Step 3: Cross multiply
   812,713x = 1,195,503 × 1,195,503
4. Step 4: Simplify right side
   812,713x = 1,429,227,423,009
5. Step 5: Solve for x
   x = 1,429,227,423,009/812,713
6. Step 6: Final answer
   x = 1,758,588.12