Finding the Third Proportional to 680,570 and 953,688

Step by Step Solution

1. Step 1: Write the proportion equation
   680,570 : 953,688 = 953,688 : x
2. Step 2: Convert to fraction form
   680,570/953,688 = 953,688/x
3. Step 3: Cross multiply
   680,570x = 953,688 × 953,688
4. Step 4: Simplify right side
   680,570x = 909,520,801,344
5. Step 5: Solve for x
   x = 909,520,801,344/680,570
6. Step 6: Final answer
   x = 1,336,410.36