Finding the Third Proportional to 452,826 and 612,807.75

Step by Step Solution

1. Step 1: Write the proportion equation
   452,826 : 612,807.75 = 612,807.75 : x
2. Step 2: Convert to fraction form
   452,826/612,807.75 = 612,807.75/x
3. Step 3: Cross multiply
   452,826x = 612,807.75 × 612,807.75
4. Step 4: Simplify right side
   452,826x = 375,533,338,460.06
5. Step 5: Solve for x
   x = 375,533,338,460.06/452,826
6. Step 6: Final answer
   x = 829,310.46