Finding the Third Proportional to 42,911,975 and 64,761,629

Step by Step Solution

1. Step 1: Write the proportion equation
   42,911,975 : 64,761,629 = 64,761,629 : x
2. Step 2: Convert to fraction form
   42,911,975/64,761,629 = 64,761,629/x
3. Step 3: Cross multiply
   42,911,975x = 64,761,629 × 64,761,629
4. Step 4: Simplify right side
   42,911,975x = 4,194,068,590,733,641
5. Step 5: Solve for x
   x = 4,194,068,590,733,641/42,911,975
6. Step 6: Final answer
   x = 97,736,554.67