Finding the Third Proportional to 12,636,994,612.50 and 27,801,343,947.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,636,994,612.50 : 27,801,343,947.50 = 27,801,343,947.50 : x
2. Step 2: Convert to fraction form
   12,636,994,612.50/27,801,343,947.50 = 27,801,343,947.50/x
3. Step 3: Cross multiply
   12,636,994,612.50x = 27,801,343,947.50 × 27,801,343,947.50
4. Step 4: Simplify right side
   12,636,994,612.50x = 772,914,725,287,194,918,912
5. Step 5: Solve for x
   x = 772,914,725,287,194,918,912/12,636,994,612.50
6. Step 6: Final answer
   x = 61,162,859,444.65