Finding the Third Proportional to 420,773 and 591,847.50

Step by Step Solution

1. Step 1: Write the proportion equation
   420,773 : 591,847.50 = 591,847.50 : x
2. Step 2: Convert to fraction form
   420,773/591,847.50 = 591,847.50/x
3. Step 3: Cross multiply
   420,773x = 591,847.50 × 591,847.50
4. Step 4: Simplify right side
   420,773x = 350,283,463,256.25
5. Step 5: Solve for x
   x = 350,283,463,256.25/420,773
6. Step 6: Final answer
   x = 832,476.09