Finding the Third Proportional to 375,442.50 and 777,501

Step by Step Solution

1. Step 1: Write the proportion equation
   375,442.50 : 777,501 = 777,501 : x
2. Step 2: Convert to fraction form
   375,442.50/777,501 = 777,501/x
3. Step 3: Cross multiply
   375,442.50x = 777,501 × 777,501
4. Step 4: Simplify right side
   375,442.50x = 604,507,805,001
5. Step 5: Solve for x
   x = 604,507,805,001/375,442.50
6. Step 6: Final answer
   x = 1,610,120.87