Finding the Third Proportional to 68,876,583 and 149,859,667.50

Step by Step Solution

1. Step 1: Write the proportion equation
   68,876,583 : 149,859,667.50 = 149,859,667.50 : x
2. Step 2: Convert to fraction form
   68,876,583/149,859,667.50 = 149,859,667.50/x
3. Step 3: Cross multiply
   68,876,583x = 149,859,667.50 × 149,859,667.50
4. Step 4: Simplify right side
   68,876,583x = 22,457,919,943,210,556
5. Step 5: Solve for x
   x = 22,457,919,943,210,556/68,876,583
6. Step 6: Final answer
   x = 326,060,309.11