Finding the Third Proportional to 356,707.50 and 742,938

Step by Step Solution

1. Step 1: Write the proportion equation
   356,707.50 : 742,938 = 742,938 : x
2. Step 2: Convert to fraction form
   356,707.50/742,938 = 742,938/x
3. Step 3: Cross multiply
   356,707.50x = 742,938 × 742,938
4. Step 4: Simplify right side
   356,707.50x = 551,956,871,844
5. Step 5: Solve for x
   x = 551,956,871,844/356,707.50
6. Step 6: Final answer
   x = 1,547,365.48