Finding the Third Proportional to 415,043 and 607,785.50

Step by Step Solution

1. Step 1: Write the proportion equation
   415,043 : 607,785.50 = 607,785.50 : x
2. Step 2: Convert to fraction form
   415,043/607,785.50 = 607,785.50/x
3. Step 3: Cross multiply
   415,043x = 607,785.50 × 607,785.50
4. Step 4: Simplify right side
   415,043x = 369,403,214,010.25
5. Step 5: Solve for x
   x = 369,403,214,010.25/415,043
6. Step 6: Final answer
   x = 890,036.01