Finding the Third Proportional to 478,406 and 650,001

Step by Step Solution

1. Step 1: Write the proportion equation
   478,406 : 650,001 = 650,001 : x
2. Step 2: Convert to fraction form
   478,406/650,001 = 650,001/x
3. Step 3: Cross multiply
   478,406x = 650,001 × 650,001
4. Step 4: Simplify right side
   478,406x = 422,501,300,001
5. Step 5: Solve for x
   x = 422,501,300,001/478,406
6. Step 6: Final answer
   x = 883,143.82