Finding the Third Proportional to 35,915.71 and 78,126.52

Step by Step Solution

1. Step 1: Write the proportion equation
   35,915.71 : 78,126.52 = 78,126.52 : x
2. Step 2: Convert to fraction form
   35,915.71/78,126.52 = 78,126.52/x
3. Step 3: Cross multiply
   35,915.71x = 78,126.52 × 78,126.52
4. Step 4: Simplify right side
   35,915.71x = 6,103,752,672.59
5. Step 5: Solve for x
   x = 6,103,752,672.59/35,915.71
6. Step 6: Final answer
   x = 169,946.60