Finding the Third Proportional to 81,643,153,074.50 and 113,518,278,385.50

Step by Step Solution

1. Step 1: Write the proportion equation
   81,643,153,074.50 : 113,518,278,385.50 = 113,518,278,385.50 : x
2. Step 2: Convert to fraction form
   81,643,153,074.50/113,518,278,385.50 = 113,518,278,385.50/x
3. Step 3: Cross multiply
   81,643,153,074.50x = 113,518,278,385.50 × 113,518,278,385.50
4. Step 4: Simplify right side
   81,643,153,074.50x = 12,886,399,527,607,875,928,064
5. Step 5: Solve for x
   x = 12,886,399,527,607,875,928,064/81,643,153,074.50
6. Step 6: Final answer
   x = 157,838,092,262.91