Finding the Third Proportional to 688,008 and 1,011,787.50

Step by Step Solution

1. Step 1: Write the proportion equation
   688,008 : 1,011,787.50 = 1,011,787.50 : x
2. Step 2: Convert to fraction form
   688,008/1,011,787.50 = 1,011,787.50/x
3. Step 3: Cross multiply
   688,008x = 1,011,787.50 × 1,011,787.50
4. Step 4: Simplify right side
   688,008x = 1,023,713,945,156.25
5. Step 5: Solve for x
   x = 1,023,713,945,156.25/688,008
6. Step 6: Final answer
   x = 1,487,939.01