Finding the Third Proportional to 334,641 and 490,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   334,641 : 490,801.50 = 490,801.50 : x
2. Step 2: Convert to fraction form
   334,641/490,801.50 = 490,801.50/x
3. Step 3: Cross multiply
   334,641x = 490,801.50 × 490,801.50
4. Step 4: Simplify right side
   334,641x = 240,886,112,402.25
5. Step 5: Solve for x
   x = 240,886,112,402.25/334,641
6. Step 6: Final answer
   x = 719,834.43