Finding the Third Proportional to 688,136 and 1,011,964

Step by Step Solution

1. Step 1: Write the proportion equation
   688,136 : 1,011,964 = 1,011,964 : x
2. Step 2: Convert to fraction form
   688,136/1,011,964 = 1,011,964/x
3. Step 3: Cross multiply
   688,136x = 1,011,964 × 1,011,964
4. Step 4: Simplify right side
   688,136x = 1,024,071,137,296
5. Step 5: Solve for x
   x = 1,024,071,137,296/688,136
6. Step 6: Final answer
   x = 1,488,181.31