Finding the Third Proportional to 284,076 and 621,607.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,076 : 621,607.50 = 621,607.50 : x
2. Step 2: Convert to fraction form
   284,076/621,607.50 = 621,607.50/x
3. Step 3: Cross multiply
   284,076x = 621,607.50 × 621,607.50
4. Step 4: Simplify right side
   284,076x = 386,395,884,056.25
5. Step 5: Solve for x
   x = 386,395,884,056.25/284,076
6. Step 6: Final answer
   x = 1,360,184.89