Finding the Third Proportional to 478,880 and 1,047,507

Step by Step Solution

1. Step 1: Write the proportion equation
   478,880 : 1,047,507 = 1,047,507 : x
2. Step 2: Convert to fraction form
   478,880/1,047,507 = 1,047,507/x
3. Step 3: Cross multiply
   478,880x = 1,047,507 × 1,047,507
4. Step 4: Simplify right side
   478,880x = 1,097,270,915,049
5. Step 5: Solve for x
   x = 1,097,270,915,049/478,880
6. Step 6: Final answer
   x = 2,291,327.50