Finding the Third Proportional to 424,440 and 912,070.13

Step by Step Solution

1. Step 1: Write the proportion equation
   424,440 : 912,070.13 = 912,070.13 : x
2. Step 2: Convert to fraction form
   424,440/912,070.13 = 912,070.13/x
3. Step 3: Cross multiply
   424,440x = 912,070.13 × 912,070.13
4. Step 4: Simplify right side
   424,440x = 831,871,912,917.52
5. Step 5: Solve for x
   x = 831,871,912,917.52/424,440
6. Step 6: Final answer
   x = 1,959,928.17