Finding the Third Proportional to 116,572 and 254,221

Step by Step Solution

1. Step 1: Write the proportion equation
   116,572 : 254,221 = 254,221 : x
2. Step 2: Convert to fraction form
   116,572/254,221 = 254,221/x
3. Step 3: Cross multiply
   116,572x = 254,221 × 254,221
4. Step 4: Simplify right side
   116,572x = 64,628,316,841
5. Step 5: Solve for x
   x = 64,628,316,841/116,572
6. Step 6: Final answer
   x = 554,406.86