Finding the Third Proportional to 610,659 and 843,817.50

Step by Step Solution

1. Step 1: Write the proportion equation
   610,659 : 843,817.50 = 843,817.50 : x
2. Step 2: Convert to fraction form
   610,659/843,817.50 = 843,817.50/x
3. Step 3: Cross multiply
   610,659x = 843,817.50 × 843,817.50
4. Step 4: Simplify right side
   610,659x = 712,027,973,306.25
5. Step 5: Solve for x
   x = 712,027,973,306.25/610,659
6. Step 6: Final answer
   x = 1,165,999.31