Finding the Third Proportional to 689,740 and 1,064,132

Step by Step Solution

1. Step 1: Write the proportion equation
   689,740 : 1,064,132 = 1,064,132 : x
2. Step 2: Convert to fraction form
   689,740/1,064,132 = 1,064,132/x
3. Step 3: Cross multiply
   689,740x = 1,064,132 × 1,064,132
4. Step 4: Simplify right side
   689,740x = 1,132,376,913,424
5. Step 5: Solve for x
   x = 1,132,376,913,424/689,740
6. Step 6: Final answer
   x = 1,641,744.59