Finding the Third Proportional to 638,748 and 1,064,518

Step by Step Solution

1. Step 1: Write the proportion equation
   638,748 : 1,064,518 = 1,064,518 : x
2. Step 2: Convert to fraction form
   638,748/1,064,518 = 1,064,518/x
3. Step 3: Cross multiply
   638,748x = 1,064,518 × 1,064,518
4. Step 4: Simplify right side
   638,748x = 1,133,198,572,324
5. Step 5: Solve for x
   x = 1,133,198,572,324/638,748
6. Step 6: Final answer
   x = 1,774,093.34