Finding the Third Proportional to 412,340 and 875,222

Step by Step Solution

1. Step 1: Write the proportion equation
   412,340 : 875,222 = 875,222 : x
2. Step 2: Convert to fraction form
   412,340/875,222 = 875,222/x
3. Step 3: Cross multiply
   412,340x = 875,222 × 875,222
4. Step 4: Simplify right side
   412,340x = 766,013,549,284
5. Step 5: Solve for x
   x = 766,013,549,284/412,340
6. Step 6: Final answer
   x = 1,857,723.12