Finding the Third Proportional to 137,675.50 and 291,868

Step by Step Solution

1. Step 1: Write the proportion equation
   137,675.50 : 291,868 = 291,868 : x
2. Step 2: Convert to fraction form
   137,675.50/291,868 = 291,868/x
3. Step 3: Cross multiply
   137,675.50x = 291,868 × 291,868
4. Step 4: Simplify right side
   137,675.50x = 85,186,929,424
5. Step 5: Solve for x
   x = 85,186,929,424/137,675.50
6. Step 6: Final answer
   x = 618,751.55