Finding the Third Proportional to 434,270 and 671,090.50

Step by Step Solution

1. Step 1: Write the proportion equation
   434,270 : 671,090.50 = 671,090.50 : x
2. Step 2: Convert to fraction form
   434,270/671,090.50 = 671,090.50/x
3. Step 3: Cross multiply
   434,270x = 671,090.50 × 671,090.50
4. Step 4: Simplify right side
   434,270x = 450,362,459,190.25
5. Step 5: Solve for x
   x = 450,362,459,190.25/434,270
6. Step 6: Final answer
   x = 1,037,056.35