Finding the Third Proportional to 684,558 and 1,064,173.50

Step by Step Solution

1. Step 1: Write the proportion equation
   684,558 : 1,064,173.50 = 1,064,173.50 : x
2. Step 2: Convert to fraction form
   684,558/1,064,173.50 = 1,064,173.50/x
3. Step 3: Cross multiply
   684,558x = 1,064,173.50 × 1,064,173.50
4. Step 4: Simplify right side
   684,558x = 1,132,465,238,102.25
5. Step 5: Solve for x
   x = 1,132,465,238,102.25/684,558
6. Step 6: Final answer
   x = 1,654,301.37