Finding the Third Proportional to 550,068 and 875,266.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,068 : 875,266.50 = 875,266.50 : x
2. Step 2: Convert to fraction form
   550,068/875,266.50 = 875,266.50/x
3. Step 3: Cross multiply
   550,068x = 875,266.50 × 875,266.50
4. Step 4: Simplify right side
   550,068x = 766,091,446,022.25
5. Step 5: Solve for x
   x = 766,091,446,022.25/550,068
6. Step 6: Final answer
   x = 1,392,721.35