Finding the Third Proportional to 139,151 and 297,979

Step by Step Solution

1. Step 1: Write the proportion equation
   139,151 : 297,979 = 297,979 : x
2. Step 2: Convert to fraction form
   139,151/297,979 = 297,979/x
3. Step 3: Cross multiply
   139,151x = 297,979 × 297,979
4. Step 4: Simplify right side
   139,151x = 88,791,484,441
5. Step 5: Solve for x
   x = 88,791,484,441/139,151
6. Step 6: Final answer
   x = 638,094.48