Finding the Third Proportional to 550,068 and 875,265.75

Step by Step Solution

1. Step 1: Write the proportion equation
   550,068 : 875,265.75 = 875,265.75 : x
2. Step 2: Convert to fraction form
   550,068/875,265.75 = 875,265.75/x
3. Step 3: Cross multiply
   550,068x = 875,265.75 × 875,265.75
4. Step 4: Simplify right side
   550,068x = 766,090,133,123.06
5. Step 5: Solve for x
   x = 766,090,133,123.06/550,068
6. Step 6: Final answer
   x = 1,392,718.96