Finding the Third Proportional to 761,086.50 and 1,636,989

Step by Step Solution

1. Step 1: Write the proportion equation
   761,086.50 : 1,636,989 = 1,636,989 : x
2. Step 2: Convert to fraction form
   761,086.50/1,636,989 = 1,636,989/x
3. Step 3: Cross multiply
   761,086.50x = 1,636,989 × 1,636,989
4. Step 4: Simplify right side
   761,086.50x = 2,679,732,986,121
5. Step 5: Solve for x
   x = 2,679,732,986,121/761,086.50
6. Step 6: Final answer
   x = 3,520,930.91