Finding the Third Proportional to 572,461 and 841,978

Step by Step Solution

1. Step 1: Write the proportion equation
   572,461 : 841,978 = 841,978 : x
2. Step 2: Convert to fraction form
   572,461/841,978 = 841,978/x
3. Step 3: Cross multiply
   572,461x = 841,978 × 841,978
4. Step 4: Simplify right side
   572,461x = 708,926,952,484
5. Step 5: Solve for x
   x = 708,926,952,484/572,461
6. Step 6: Final answer
   x = 1,238,384.72