Finding the Third Proportional to 53,137,566 and 86,768,860.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,137,566 : 86,768,860.50 = 86,768,860.50 : x
2. Step 2: Convert to fraction form
   53,137,566/86,768,860.50 = 86,768,860.50/x
3. Step 3: Cross multiply
   53,137,566x = 86,768,860.50 × 86,768,860.50
4. Step 4: Simplify right side
   53,137,566x = 7,528,835,152,468,460
5. Step 5: Solve for x
   x = 7,528,835,152,468,460/53,137,566
6. Step 6: Final answer
   x = 141,685,736.08