Finding the Third Proportional to 722,912 and 1,570,446

Step by Step Solution

1. Step 1: Write the proportion equation
   722,912 : 1,570,446 = 1,570,446 : x
2. Step 2: Convert to fraction form
   722,912/1,570,446 = 1,570,446/x
3. Step 3: Cross multiply
   722,912x = 1,570,446 × 1,570,446
4. Step 4: Simplify right side
   722,912x = 2,466,300,638,916
5. Step 5: Solve for x
   x = 2,466,300,638,916/722,912
6. Step 6: Final answer
   x = 3,411,619.45