Finding the Third Proportional to 563,876 and 1,215,776

Step by Step Solution

1. Step 1: Write the proportion equation
   563,876 : 1,215,776 = 1,215,776 : x
2. Step 2: Convert to fraction form
   563,876/1,215,776 = 1,215,776/x
3. Step 3: Cross multiply
   563,876x = 1,215,776 × 1,215,776
4. Step 4: Simplify right side
   563,876x = 1,478,111,282,176
5. Step 5: Solve for x
   x = 1,478,111,282,176/563,876
6. Step 6: Final answer
   x = 2,621,341.01