Finding the Third Proportional to 670,258.50 and 1,436,460

Step by Step Solution

1. Step 1: Write the proportion equation
   670,258.50 : 1,436,460 = 1,436,460 : x
2. Step 2: Convert to fraction form
   670,258.50/1,436,460 = 1,436,460/x
3. Step 3: Cross multiply
   670,258.50x = 1,436,460 × 1,436,460
4. Step 4: Simplify right side
   670,258.50x = 2,063,417,331,600
5. Step 5: Solve for x
   x = 2,063,417,331,600/670,258.50
6. Step 6: Final answer
   x = 3,078,539.60