Finding the Third Proportional to 812,066 and 1,191,555

Step by Step Solution

1. Step 1: Write the proportion equation
   812,066 : 1,191,555 = 1,191,555 : x
2. Step 2: Convert to fraction form
   812,066/1,191,555 = 1,191,555/x
3. Step 3: Cross multiply
   812,066x = 1,191,555 × 1,191,555
4. Step 4: Simplify right side
   812,066x = 1,419,803,318,025
5. Step 5: Solve for x
   x = 1,419,803,318,025/812,066
6. Step 6: Final answer
   x = 1,748,384.14