Finding the Third Proportional to 863,410 and 1,307,160

Step by Step Solution

1. Step 1: Write the proportion equation
   863,410 : 1,307,160 = 1,307,160 : x
2. Step 2: Convert to fraction form
   863,410/1,307,160 = 1,307,160/x
3. Step 3: Cross multiply
   863,410x = 1,307,160 × 1,307,160
4. Step 4: Simplify right side
   863,410x = 1,708,667,265,600
5. Step 5: Solve for x
   x = 1,708,667,265,600/863,410
6. Step 6: Final answer
   x = 1,978,975.53