Finding the Third Proportional to 402,279.50 and 881,367.50

Step by Step Solution

1. Step 1: Write the proportion equation
   402,279.50 : 881,367.50 = 881,367.50 : x
2. Step 2: Convert to fraction form
   402,279.50/881,367.50 = 881,367.50/x
3. Step 3: Cross multiply
   402,279.50x = 881,367.50 × 881,367.50
4. Step 4: Simplify right side
   402,279.50x = 776,808,670,056.25
5. Step 5: Solve for x
   x = 776,808,670,056.25/402,279.50
6. Step 6: Final answer
   x = 1,931,017.29