Finding the Third Proportional to 590,780 and 1,265,560

Step by Step Solution

1. Step 1: Write the proportion equation
   590,780 : 1,265,560 = 1,265,560 : x
2. Step 2: Convert to fraction form
   590,780/1,265,560 = 1,265,560/x
3. Step 3: Cross multiply
   590,780x = 1,265,560 × 1,265,560
4. Step 4: Simplify right side
   590,780x = 1,601,642,113,600
5. Step 5: Solve for x
   x = 1,601,642,113,600/590,780
6. Step 6: Final answer
   x = 2,711,063.53