Finding the Third Proportional to 688,531.50 and 938,682

Step by Step Solution

1. Step 1: Write the proportion equation
   688,531.50 : 938,682 = 938,682 : x
2. Step 2: Convert to fraction form
   688,531.50/938,682 = 938,682/x
3. Step 3: Cross multiply
   688,531.50x = 938,682 × 938,682
4. Step 4: Simplify right side
   688,531.50x = 881,123,897,124
5. Step 5: Solve for x
   x = 881,123,897,124/688,531.50
6. Step 6: Final answer
   x = 1,279,714.72