Finding the Third Proportional to 402,376.50 and 837,810

Step by Step Solution

1. Step 1: Write the proportion equation
   402,376.50 : 837,810 = 837,810 : x
2. Step 2: Convert to fraction form
   402,376.50/837,810 = 837,810/x
3. Step 3: Cross multiply
   402,376.50x = 837,810 × 837,810
4. Step 4: Simplify right side
   402,376.50x = 701,925,596,100
5. Step 5: Solve for x
   x = 701,925,596,100/402,376.50
6. Step 6: Final answer
   x = 1,744,449.78