Finding the Third Proportional to 137,722 and 291,981.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,722 : 291,981.50 = 291,981.50 : x
2. Step 2: Convert to fraction form
   137,722/291,981.50 = 291,981.50/x
3. Step 3: Cross multiply
   137,722x = 291,981.50 × 291,981.50
4. Step 4: Simplify right side
   137,722x = 85,253,196,342.25
5. Step 5: Solve for x
   x = 85,253,196,342.25/137,722
6. Step 6: Final answer
   x = 619,023.80