Finding the Third Proportional to 340,801.50 and 716,858.50

Step by Step Solution

1. Step 1: Write the proportion equation
   340,801.50 : 716,858.50 = 716,858.50 : x
2. Step 2: Convert to fraction form
   340,801.50/716,858.50 = 716,858.50/x
3. Step 3: Cross multiply
   340,801.50x = 716,858.50 × 716,858.50
4. Step 4: Simplify right side
   340,801.50x = 513,886,109,022.25
5. Step 5: Solve for x
   x = 513,886,109,022.25/340,801.50
6. Step 6: Final answer
   x = 1,507,875.14