Finding the Third Proportional to 424,413 and 915,300

Step by Step Solution

1. Step 1: Write the proportion equation
   424,413 : 915,300 = 915,300 : x
2. Step 2: Convert to fraction form
   424,413/915,300 = 915,300/x
3. Step 3: Cross multiply
   424,413x = 915,300 × 915,300
4. Step 4: Simplify right side
   424,413x = 837,774,090,000
5. Step 5: Solve for x
   x = 837,774,090,000/424,413
6. Step 6: Final answer
   x = 1,973,959.54