Finding the Third Proportional to 99,657 and 149,210.50

Step by Step Solution

1. Step 1: Write the proportion equation
   99,657 : 149,210.50 = 149,210.50 : x
2. Step 2: Convert to fraction form
   99,657/149,210.50 = 149,210.50/x
3. Step 3: Cross multiply
   99,657x = 149,210.50 × 149,210.50
4. Step 4: Simplify right side
   99,657x = 22,263,773,310.25
5. Step 5: Solve for x
   x = 22,263,773,310.25/99,657
6. Step 6: Final answer
   x = 223,404.01