Finding the Third Proportional to 402,960 and 868,870.50

Step by Step Solution

1. Step 1: Write the proportion equation
   402,960 : 868,870.50 = 868,870.50 : x
2. Step 2: Convert to fraction form
   402,960/868,870.50 = 868,870.50/x
3. Step 3: Cross multiply
   402,960x = 868,870.50 × 868,870.50
4. Step 4: Simplify right side
   402,960x = 754,935,945,770.25
5. Step 5: Solve for x
   x = 754,935,945,770.25/402,960
6. Step 6: Final answer
   x = 1,873,476.14