Finding the Third Proportional to 137,715 and 291,961.50

Step by Step Solution

1. Step 1: Write the proportion equation
   137,715 : 291,961.50 = 291,961.50 : x
2. Step 2: Convert to fraction form
   137,715/291,961.50 = 291,961.50/x
3. Step 3: Cross multiply
   137,715x = 291,961.50 × 291,961.50
4. Step 4: Simplify right side
   137,715x = 85,241,517,482.25
5. Step 5: Solve for x
   x = 85,241,517,482.25/137,715
6. Step 6: Final answer
   x = 618,970.46