Finding the Third Proportional to 520,876 and 1,056,240

Step by Step Solution

1. Step 1: Write the proportion equation
   520,876 : 1,056,240 = 1,056,240 : x
2. Step 2: Convert to fraction form
   520,876/1,056,240 = 1,056,240/x
3. Step 3: Cross multiply
   520,876x = 1,056,240 × 1,056,240
4. Step 4: Simplify right side
   520,876x = 1,115,642,937,600
5. Step 5: Solve for x
   x = 1,115,642,937,600/520,876
6. Step 6: Final answer
   x = 2,141,858.98