Finding the Third Proportional to 812,468 and 1,187,310

Step by Step Solution

1. Step 1: Write the proportion equation
   812,468 : 1,187,310 = 1,187,310 : x
2. Step 2: Convert to fraction form
   812,468/1,187,310 = 1,187,310/x
3. Step 3: Cross multiply
   812,468x = 1,187,310 × 1,187,310
4. Step 4: Simplify right side
   812,468x = 1,409,705,036,100
5. Step 5: Solve for x
   x = 1,409,705,036,100/812,468
6. Step 6: Final answer
   x = 1,735,089.92