Finding the Third Proportional to 297,483.50 and 610,807.50

Step by Step Solution

1. Step 1: Write the proportion equation
   297,483.50 : 610,807.50 = 610,807.50 : x
2. Step 2: Convert to fraction form
   297,483.50/610,807.50 = 610,807.50/x
3. Step 3: Cross multiply
   297,483.50x = 610,807.50 × 610,807.50
4. Step 4: Simplify right side
   297,483.50x = 373,085,802,056.25
5. Step 5: Solve for x
   x = 373,085,802,056.25/297,483.50
6. Step 6: Final answer
   x = 1,254,139.48