Finding the Third Proportional to 412,663.50 and 904,054.50

Step by Step Solution

1. Step 1: Write the proportion equation
   412,663.50 : 904,054.50 = 904,054.50 : x
2. Step 2: Convert to fraction form
   412,663.50/904,054.50 = 904,054.50/x
3. Step 3: Cross multiply
   412,663.50x = 904,054.50 × 904,054.50
4. Step 4: Simplify right side
   412,663.50x = 817,314,538,970.25
5. Step 5: Solve for x
   x = 817,314,538,970.25/412,663.50
6. Step 6: Final answer
   x = 1,980,583.55