Finding the Third Proportional to 266,256.50 and 573,109

Step by Step Solution

1. Step 1: Write the proportion equation
   266,256.50 : 573,109 = 573,109 : x
2. Step 2: Convert to fraction form
   266,256.50/573,109 = 573,109/x
3. Step 3: Cross multiply
   266,256.50x = 573,109 × 573,109
4. Step 4: Simplify right side
   266,256.50x = 328,453,925,881
5. Step 5: Solve for x
   x = 328,453,925,881/266,256.50
6. Step 6: Final answer
   x = 1,233,599.65