Finding the Third Proportional to 174,961.69 and 278,532

Step by Step Solution

1. Step 1: Write the proportion equation
   174,961.69 : 278,532 = 278,532 : x
2. Step 2: Convert to fraction form
   174,961.69/278,532 = 278,532/x
3. Step 3: Cross multiply
   174,961.69x = 278,532 × 278,532
4. Step 4: Simplify right side
   174,961.69x = 77,580,075,024
5. Step 5: Solve for x
   x = 77,580,075,024/174,961.69
6. Step 6: Final answer
   x = 443,411.79