Finding the Third Proportional to 688,123.50 and 1,011,881.25

Step by Step Solution

1. Step 1: Write the proportion equation
   688,123.50 : 1,011,881.25 = 1,011,881.25 : x
2. Step 2: Convert to fraction form
   688,123.50/1,011,881.25 = 1,011,881.25/x
3. Step 3: Cross multiply
   688,123.50x = 1,011,881.25 × 1,011,881.25
4. Step 4: Simplify right side
   688,123.50x = 1,023,903,664,101.56
5. Step 5: Solve for x
   x = 1,023,903,664,101.56/688,123.50
6. Step 6: Final answer
   x = 1,487,964.97