Finding the Third Proportional to 631,776 and 1,491,409

Step by Step Solution

1. Step 1: Write the proportion equation
   631,776 : 1,491,409 = 1,491,409 : x
2. Step 2: Convert to fraction form
   631,776/1,491,409 = 1,491,409/x
3. Step 3: Cross multiply
   631,776x = 1,491,409 × 1,491,409
4. Step 4: Simplify right side
   631,776x = 2,224,300,805,281
5. Step 5: Solve for x
   x = 2,224,300,805,281/631,776
6. Step 6: Final answer
   x = 3,520,711.15