Finding the Third Proportional to 638,292 and 945,114

Step by Step Solution

1. Step 1: Write the proportion equation
   638,292 : 945,114 = 945,114 : x
2. Step 2: Convert to fraction form
   638,292/945,114 = 945,114/x
3. Step 3: Cross multiply
   638,292x = 945,114 × 945,114
4. Step 4: Simplify right side
   638,292x = 893,240,472,996
5. Step 5: Solve for x
   x = 893,240,472,996/638,292
6. Step 6: Final answer
   x = 1,399,422.95