Finding the Third Proportional to 812,210 and 1,262,613

Step by Step Solution

1. Step 1: Write the proportion equation
   812,210 : 1,262,613 = 1,262,613 : x
2. Step 2: Convert to fraction form
   812,210/1,262,613 = 1,262,613/x
3. Step 3: Cross multiply
   812,210x = 1,262,613 × 1,262,613
4. Step 4: Simplify right side
   812,210x = 1,594,191,587,769
5. Step 5: Solve for x
   x = 1,594,191,587,769/812,210
6. Step 6: Final answer
   x = 1,962,782.52