Finding the Third Proportional to 478,603.50 and 740,983.50

Step by Step Solution

1. Step 1: Write the proportion equation
   478,603.50 : 740,983.50 = 740,983.50 : x
2. Step 2: Convert to fraction form
   478,603.50/740,983.50 = 740,983.50/x
3. Step 3: Cross multiply
   478,603.50x = 740,983.50 × 740,983.50
4. Step 4: Simplify right side
   478,603.50x = 549,056,547,272.25
5. Step 5: Solve for x
   x = 549,056,547,272.25/478,603.50
6. Step 6: Final answer
   x = 1,147,205.46