Finding the Third Proportional to 610,308 and 887,760

Step by Step Solution

1. Step 1: Write the proportion equation
   610,308 : 887,760 = 887,760 : x
2. Step 2: Convert to fraction form
   610,308/887,760 = 887,760/x
3. Step 3: Cross multiply
   610,308x = 887,760 × 887,760
4. Step 4: Simplify right side
   610,308x = 788,117,817,600
5. Step 5: Solve for x
   x = 788,117,817,600/610,308
6. Step 6: Final answer
   x = 1,291,344.40