Finding the Third Proportional to 315,888 and 745,704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   315,888 : 745,704.50 = 745,704.50 : x
2. Step 2: Convert to fraction form
   315,888/745,704.50 = 745,704.50/x
3. Step 3: Cross multiply
   315,888x = 745,704.50 × 745,704.50
4. Step 4: Simplify right side
   315,888x = 556,075,201,320.25
5. Step 5: Solve for x
   x = 556,075,201,320.25/315,888
6. Step 6: Final answer
   x = 1,760,355.57