Finding the Third Proportional to 638,724 and 1,001,970

Step by Step Solution

1. Step 1: Write the proportion equation
   638,724 : 1,001,970 = 1,001,970 : x
2. Step 2: Convert to fraction form
   638,724/1,001,970 = 1,001,970/x
3. Step 3: Cross multiply
   638,724x = 1,001,970 × 1,001,970
4. Step 4: Simplify right side
   638,724x = 1,003,943,880,900
5. Step 5: Solve for x
   x = 1,003,943,880,900/638,724
6. Step 6: Final answer
   x = 1,571,796.08