Finding the Third Proportional to 569,143.13 and 1,218,978

Step by Step Solution

1. Step 1: Write the proportion equation
   569,143.13 : 1,218,978 = 1,218,978 : x
2. Step 2: Convert to fraction form
   569,143.13/1,218,978 = 1,218,978/x
3. Step 3: Cross multiply
   569,143.13x = 1,218,978 × 1,218,978
4. Step 4: Simplify right side
   569,143.13x = 1,485,907,364,484
5. Step 5: Solve for x
   x = 1,485,907,364,484/569,143.13
6. Step 6: Final answer
   x = 2,610,779.78