Finding the Third Proportional to 433,985 and 657,097.50

Step by Step Solution

1. Step 1: Write the proportion equation
   433,985 : 657,097.50 = 657,097.50 : x
2. Step 2: Convert to fraction form
   433,985/657,097.50 = 657,097.50/x
3. Step 3: Cross multiply
   433,985x = 657,097.50 × 657,097.50
4. Step 4: Simplify right side
   433,985x = 431,777,124,506.25
5. Step 5: Solve for x
   x = 431,777,124,506.25/433,985
6. Step 6: Final answer
   x = 994,912.55