Finding the Third Proportional to 688,531.50 and 1,499,539.50

Step by Step Solution

1. Step 1: Write the proportion equation
   688,531.50 : 1,499,539.50 = 1,499,539.50 : x
2. Step 2: Convert to fraction form
   688,531.50/1,499,539.50 = 1,499,539.50/x
3. Step 3: Cross multiply
   688,531.50x = 1,499,539.50 × 1,499,539.50
4. Step 4: Simplify right side
   688,531.50x = 2,248,618,712,060.25
5. Step 5: Solve for x
   x = 2,248,618,712,060.25/688,531.50
6. Step 6: Final answer
   x = 3,265,818.21