Finding the Third Proportional to 271,487 and 425,536.50

Step by Step Solution

1. Step 1: Write the proportion equation
   271,487 : 425,536.50 = 425,536.50 : x
2. Step 2: Convert to fraction form
   271,487/425,536.50 = 425,536.50/x
3. Step 3: Cross multiply
   271,487x = 425,536.50 × 425,536.50
4. Step 4: Simplify right side
   271,487x = 181,081,312,832.25
5. Step 5: Solve for x
   x = 181,081,312,832.25/271,487
6. Step 6: Final answer
   x = 666,998.10